Right now I have an evga 8600gts video card.  
 
I want to upgrade, and right now I have kinda narrowed it to an 8800gt ($200), an 8800gts 512 ($300), or an 9800 gtx black edition (cuz free cod4 makes it even out to same as a stock 9800gtx) ($400).  Also maybe sli 8800gt.
I am kinda confused which one to get though because my monitor is only a 19 inch at 1440x900, so I dont know what the performance differences will be like on my monitor.
I also didnt know if my processor (e6750 @ 2.66ghz) would be able to keep up.  
 
So I am looking for recommendations, and maybe you can answer about the resolutions and processor too, and how much gain it will be vs my 8600gts and vs the others
 
I have enough money for anything up there by the way.  
I dont want to upgrade like really fast also, I want something that will last a while, and will not have problems overheating.
 
And dont say I can get it cheaper anywhere else I only want to buy local and that is the prices I have here.
I also dont want to overclock last time i tried that my mouse kept freezing.
 
I play Crysis, Company of Heroes, CS:S, COD2, and COD4 (When I finally buy it).
I am looking to play UT3, Oblivion, and Assassins Creed.  
 
PSU: 700W OCZ gamexstream
RAM: 3gb ballistix
MoBo: evga 680i LT SLI
CPU: e6750 @ 2.66  
Case: Apevia X-Plorer
 
Ok I know this is a lot of information for you all but help would be very much appreciated.        

Well the 9800gtx will likely perform the best.  I'd personally take the 8800gts 512mb as it performs marginally slower,and it's nearly half the price.  
 
http://www.newegg.com/Product/Prod [...] 6814127325
 
I have the same card from xfx and i played through Crysis on all high settings, excluding water which i had on medium. (last level was framerate hell for some reason due to it).  This was at a screen resolution of 1680x1050 and it was easily playable throughout the game.  I don't ever recall it goin' below 20fps.
 
COD4 max settings never went below 40 in heavy action with smoke effects.  Otherwise it was stuck at 60.
 
Bioshock was rediculous, without vsync on it was almost always at 90fps.
 
Never played UT3
 
Oblivion plays like a dream.
 
And i'm sure Assassins Creed will work great.

Improvement over 8600 will be vast, trust me, even the 7900GS performed better than them. Anyway, there is no way that the E6750 will bottleneck those cards.  You might wanna consider overclocking it. Dont get the 9800GTX, its a scam. A 8800GTS overclocked to the same speeds does better, ughhh,where's dagger, come now post those benchies again.

Haha, missing Dagger eh?
http://hardwarezone.com.my/article [...] cid=3&pg=8
Check this out, the 9800GTX is only an overclocked 8800GTS

I would go for the 9800 GTX, if you don't want to tweak with the clocks. It is factory oced and the bonus COD4.  
The advantage is also that it can do tri-sli.

I agree with overclocking the 8800GTS, its much cheaper.

At those prices, I would go for the 8800GT.  It does good at your resolution.  Crysis will be the biggest struggle, but really even the 9800GTX isn't a huge gain over it in that game.   $400 for crysis would be better spent on two 8800GT than one 9800GTX.  
http://www.firingsquad.com/hardwar [...] /page8.asp
http://www.firingsquad.com/hardwar [...] /page9.asp
 
 
The e6750 is fine at gaming resolutions/settings.  I wouldn't be too concerned about your cpu.  Shame not to consider OC'in it, but that is your call.  
 
And one 8800GT is more than twice as powerful as an 8600GTS....no comparison. Take a look at the 1440x900 results in games that matter to you in this review: http://www.legionhardware.com/docu [...] id=710&p=2
 
 

Does the 9800gtx have dx10.1?

Ok thanks for the help.
And If anyone wanted to help me overclock id be more than happy to OC.
 
My mouse just always froze after about 1min of OS unless i cranked up my CPU voltage from 1.21V to like 1.41V.
Now that I think about it though it might have been my RAM with too little voltage or too high of timings. (2x1gb crucial ballistix @ 4 4 4 12)
 
K anyways thanks for the help and plz answer that last question cuz if it has dx10.1 im probably gona get the 9800 instead because it will be more future proof.

no, there are no Nvidia cards out yet that have DX 10.1, nor are there any games. Excluding Assassin's Creed, but I think they took the DX 10.1 out..

Ok and does anyone know more about the 8800gt because I just read that it averages 92C under load.  Im kinda scared about this because my case is also not the best at cooling, and my 8600gts still reaches 71C, while that site says it only gets to 66C, so the 8800gt will likely get even hotter than 92C in my case...

Also my local store has a BFG 9800 gtx for $305 after rebate.  Would anybody recommend me getting this now.

The original 8800GT reference cooler with the smaller diameter fan is not very good.  If left at factory settings, it could heat up quite a bit.  Added to this was a problem that some ran 29% fan speed until the card was mid 80's. You could always adjust the fan manually and you would not hit those temps, but above 60% the stock fans got pretty loud.  At 100% they were just plain aweful.  
 
I was running SLI BFG 8800GT and my top card would get over 90 degrees is left at factory auto fan settings.  I manually ran the fans at a higher voltage(rpm), but hated balancing noise with good cooling.  So like many others ended up doing, I swapped my stock coolers for Zalman VF900's and got lower temps with less noise...much better.  
 
Anyway, now there are non reference coolers, but also a redesigned reference cooler with larger diameter fan.  That one is better than the original.  Edit: here is a pic of the original reference cooler from the BFG 8800GT and the new style 8800GT cooler found also on the evga 8800GS.

Well, at $200 for the 8800GT, $300 for the G92 GTS, and $305 for the 9800GTX, yeah then the 9800 looks like a valid option for sure.  At $400 it was not.  

Nice prices, I remember the day when everybody wanted G80 so bad, but they were so expensive. GTX-500+, GTS-400+, just out of reach for most of us. now, with G92, its a godsend.

Ah, yes, this is the benchmark:
http://en.expreview.com/2008/04/03 [...] review/12/

G92 8800gts, $169.99 after MIR:
http://www.newegg.com/Product/Prod [...] 6814134037
G92 9800gtx, $299:
http://www.newegg.com/Product/Prod [...] 6814500037

^^^ there she is, a bit late, but she has a life

The OP posted NOT to provide cheaper prices as he/she wanted to buy locally.  Going by his $300 for the 8800GTS G92 or $305 AR for the 9800GTX, he'd be a fool not to buy the 9800GTX vs the 8800GTS.  

By the way, 400 was for the black edition, and it came with call of duty 4, which I was planning to buy anyway.  So really, It is $350 for the black edition 9800gtx.

Still seems pricey when you can often buy the game for $40 and OC yourself.  I guess your local price is $50 for the game?  
 
I must admit, like Dagger, I have a hard time not providing links to cheaper cards too.  The one dagger linked to is so much cheaper, or you could grab the XFX 8800GTS G92 with COD4, for $220 shi