I CANT MAKE UP MY MIND BETWEEN DDR 2 Or DDR 3
Im thinking of either getting the 780i mobo or 790i mobo
But I cant decide which one, is their a big difference between the two motherboards?
Do they overclock just as well?
If i went with the 780 I I could use the money I saved on mobo and buy 4gb of corsair dominitor ram.
But if i go with the 790i I can just afford a 4gb kit of ocz platinum ram.
Any advice, recommendations? share your knowledge please!

I'm assuming you're looking for a setup with two video cards. Get DDR2 and an X48 motherboard (P5E Deluxe, GA-X48-DS4) and two HD 4850 or HD 4870 cards.

Are your sure about DDR2?
I'm really not a ATI guy to be honest, i'd much rather have 2 9800gx2 or 9800gtx's

But aside from GPU's
My main concern is will the 780i OC better or as well, and run as fast or as well as the 790i?

Yes, absolutely sure about DDR2.

All right, if you really want nVidia cards, get a 780i with two GTX 260 cards.

I've seen benchmarks of 9800GX2 SLI and I don't think it's worth it. That's 4 GPUs, and the drivers and games are not very efficient. That is, the second card doesn't add much value.

Overclocking: the eVGA 780i and the eVGA 790i can both overclock an E8400 to 3.8GHz, for example.

Alright why the 260's?
Ive seen in maxishines benchmark that the 9800gx2 was performing better than the 4870 and gtx280 by a couple frames in crysis, it seems like a fairly stable card, no?
So I should go with the DDR2 and the dominator kit is a good choice?
In the future I wont be regretting this decision?

Why the GTX 260 SLI:

1. It beats 8800GT SLI/8800GTS SLI/9800GTX SLI, and it's still reasonably priced at $620 IMO.

2. It's almost as good as 9800GX2 SLI/GTX 280 SLI, which cost $1000+.

The 9800GX2 relies on SLI internally. I'm not very happy about that, TBH.

LOL - regretting the decision. Whatever you do or don't you'll regret it anyway. I spent $651 on my 8800GTX OC2 a year ago and now it's not even in the top 10.

wow lol im sorry but where do you live?
beacuse here, in canada/usa the gtx 280 is maybe $550-600
and the 9800GX2 is around 400-500
LOL yeah thats true
but the 8800 gtx is a kick ass graphics card still, and gets mentioned alot.

I live in Canada. Yeah, something you get for $400 at newegg is usually $500 at my local shop. We also have 13% tax on top of the advertised price.

The GTX 260 is $270 AR here:
http://www.zipzoomfly.com/jsp/Prod [...] t=celebros

9800GX2 is $400 AR
http://www.zipzoomfly.com/jsp/Prod [...] t=celebros

GTX 280: $420 AR
http://www.zipzoomfly.com/jsp/Prod [...] t=celebros

You know, at these prices, a 9800GX2 sounds better than two GTX 260 or two GTX 280. If you get a 9800GX2 you probably shouldn't add another because it won't add much value, and in that case you don't need a SLI motherboard at all and can save some cash.

DUDE THAT SUCKS
i live in Edmonton, Alberta
And I completely stopped going to our stores
i set up a paypal account and everythings going great
even though ive only ordered my case and a razer mouse
it came fine, no troubles.

Im sooo soo confused about the DDR 2 DDR3 thing
the only thing I know
is that teh corsair dominator ram looks kick ass

Anyone else have any suggestions?

You have a choice:

If you plan to upgrade when Nehalm comes out, you would be better of getting the DDR3 now, and transferring the RAM later. If you plan to stick with the build for a bit, get the DDR2. Right now, there's not much increase in preformance (there is some though).

And yes, SLI on the 9800 GX2 stinks. Bad drivers really.

DDR3 price will come down when Nehalm come out. Have you ever seen mainstream memory more expensive than outdated tech? (RDRam was never mainstream)

Get 2 GB DDR2 800 for $20 to 30 After mir and live with it for your pre Nehalm system. NCIX has it for $20 for OCZ Platinum rev 2 after MIR.

Google "<Part Name> Price Canada" to find good canadian online pricing. PC Village and Canada Computers in Toronto often beat Newegg pricing.

And by the way, when you order something from the US, your credit card company gets about 3% commission on the exchange rate. I noticed that on my credit card bill, for things bought from Amazon.