Nice case Drizo. And looks like a nice build you have there. Good ATI brands would be HIS (my fav.) Sapphire, ATI (overpriced ussually). If cross-fire is a future option, MSI announced that their P965 has cross-fire support and ATI just released a driver for it. Although, i think it runs 16X/4X instead of 8X/8X as in the 975X chipsets or the R600. Article: http://www.dailytech.com/article.aspx?newsid=4224
CPU Cooler: Tuniq tower by far the best but the hardest to find. Scythe towers are amazin, i love my Ninja but htey have some newer ones that mount easier and they cool just as good if not better.
RAM: G.Skill is an awsome company if ur lookin for a good company, i've had my DDR 400 up to 450mhz stable. And get two 1GB sticks not four sticks (inless u want 4GB which is useless at the moment)
Also, it might be cheaper (and better performance) to get 2 say like 80GB SATA II drives and RAID them then get another 80GB or more (most ppl prefer 250GB) and use that as a back-up drive. Just a suggestion.