New Gaming Computer Build

[Mana]

I am building a new computer, and would like some input on the build I currently have picked out. Before I list the parts, here's some general information. It's going to be a gaming computer, my budget is about $1200-$1300 (not including the videocard), the country I will be buying things from is Canada (NCIX and Canadacomputers), I do plan on overclocking, but nothing extreme, and it is being built with a mind for upgrading it a bit in the future.

Anyway, is what I have right now:

CPU - Q9450
RAM - 4 Gigabytes of Crucial Ballistix PC2-8500 RAM
Motherboard - DFI LP Dk X48-T2RS Motherboard
Cooling - Thermalright Ultima-90
Fans - Scythe S-FLEX 120mm Fan (for the heatsink)
Case - Antec Nine Hundred
PSU - Antec TruePower Trio 650W
Harddrive - Hitachi Deskstar 500 GB
DVD-ROM - LG GSA-H62L

The one thing I am most unsure of, for the CPU heatsink, is whether or not I should just get the Ultra-120 instead of the Ultima-90. I also do not have the videocard listed here since I am going to use my current one and wait for nVidia and ATi to release their new offerings in a couple of weeks before upgrading that.

Thanks in advance for input.

 

[ther00kie16]

recommend some other ram like gskill 1000 because ballistix haven't been as consistent lately.
motherboard might be overkill. p35 is a very good overclocking board if you don't need sli.
get a better cooler: thermalright ultra 120 extreme, tuniq tower and xigmatek s1283 are 3 of the best.
for power supply, people will say get a corsair. and if you don't need 2 video cards, 520 or 550 will be plenty. if you want 2 high-end video cards, 650 may not be enough.
good price on the hard drive. my hitachi deskstar has always serviced me well, even through the hell i put it through at times. it runs cooler than my other drives too.
otherwise, there's nothing wrong with your choices just that you could optimize cost and quality a little more.

 

[DSF]

Motherboard and RAM are definitely overkill. Good DDR2-1000 is all you need to get the most out of your overclock, and a P35 board will be fine for your purposes. If it's just for gaming, dual core might be a better choice than quad core.