Budget P35 build - please critique

Antec P180 case - $129.99 ($40 MIR)
Gigabyte GA-P35-DS3R - $129.99
EVGA 256-P2-N624-AR GeForce 7900GS 256MB GDDR3 - $149.99 ($20 MIR)
SeaSonic S12-430 ATX12V 430W Power Supply - $94.99
E6420 - $186.00
CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) - $113.00 ($30 MIR)
Western Digital Caviar SE WD1600JS 160GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM - $52.99
Vista 64bit OEM - $89.99

Total - $946.94 (-$70 MIRs)

1. PSU enough for system?
2. Vista - 32 or 64 bit?
3. Suggest CPU cooler?

Thank you for any input/feedback/critique.

If you want to play Oblivion, ditch the 7900GS and get an ATI X1950Pro instead for about the same price. ATI owns nVidia at Oblivion (other than the GF8800 series). Either will run FEAR OK.

I like the Thermalright Ultra120 eXtreme CPU cooler. Whether it's right for you depends on how much you want to overclock, you can get some overclocking just using the cooler that comes in the box with the C2D.

If you have to get Vista, I'd get 32-bit Home Premium. XP will give better gaming performance, at least for now. I personally like Vista better for general use, but dual-boot to XP for gaming. Home Basic is junk, don't waste your money on that. IMHO, Home Premium is worth the extra $20, but Ultimate is not worth the extra $100 or whatever it runs these days.

Your PSU is marginal, especially if you plan future upgrades. I'd go up to the next power level, which conveniently enough adds modular cabling and comes to the same price after M-I-R (link). Seasonic makes nice PSUs, good choice in brand.

True, but the 64-bit drivers are worse than the 32-bit ones now. I would only use 64-bit at the moment if I had more than 3 GB of RAM. It's a tradeoff, like everything else.

Looks good. Up the PSU, possibly get a different video card (as Senor_Bob suggested)

Also..if I can add correctly..you have $90 in MIR, not $70