Another first/dream build...

I'm glad to be a member of this great site with a helpful community, so I thought I could get some suggestions on my first future build (if I could ever scrounge up the cash for it). Some other things:

-Planning to overclock CPU to 3.00Ghz or higher but I'll settle with 3.00. May O/C video card too, depends on what is suggested.
-Just a dream build I would like to know if it could work out for say Crysis or something
-No SLI/Crossfire or RAID
-No set budget, knowing that prices could change once Christmas rolls over so I'm trying to get the most bang for my buck. Hopefully it all adds up to lower than $600 or something.
edit: If my budget allows, I'll grab some aftermarket coolers and fans, could use some suggestions for that too. Also I plan on getting Windows XP if that helps some.

Case: COOLER MASTER Centurion 534 ($35 w/ $15 MIR)
http://www.newegg.com/Product/Prod [...] 6811119106

Mobo: GIGABYTE GA-P35-DS3L ($92)
http://www.newegg.com/Product/Prod [...] 6813128059

CPU: Intel Core 2 Duo E6750 Conroe 2.66GHz 4M shared L2 Cache LGA 775 ($190)
http://www.newegg.com/Product/Prod [...] 6819115029

RAM: Undecided between these two -

Patriot Extreme Performance 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) ($38 w/ $40 MIR)
http://www.newegg.com/Product/Prod [...] 6820220144

and Crucial Ballistix 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) ($50 w/ $25 MIR)
http://www.newegg.com/Product/Prod [...] 6820146565

Hard drive: some 200gb 7200rpm SATA Western Digital on my current computer
http://www.wdc.com/en/products/Pro [...] riveID=136

Optical drives: recycling the dvd-rw drives on current computer

PSU: could use some suggestions, budget no higher than $100ish maybe $150

Video Card: had my eyes on the 8800gt, but the HD 3xxx are starting to look good with the GT overheating/lockups. Could just grab a 8600gts but undecided.

http://www.newegg.com/Product/Prod [...] 6817703005

Apparently the actual size of the power supply is a little long but it is a great (Tier 1 rated- see tomswiki.com) and is very stable.

Interesting, I am actually building almost the exact same computer.

If you're not going for the 8800gt, then a 3850 is going to be about 60% better than an 8600. And an 8800gt will be (at least right now) a better deal than a 3870, since they are only $30-40 different and the gt performs 30% better. And as far as I can tell, most of the problems people have been having with the 8800gt are when they overclock it. I do know that evga shipped out a bad batch at one point, but just get a good warraty on the card and then you can just replace it if it ever starts getting weird.