Well my OCZ golds were 160 w/out rebates or anything, and I haven't had a problem with them yet, as for Windows 7 be sure to order the 64-bit oem disk, if you didn't plan on that already.
There are alot of options for CPU cooling, im assuming you want to go air since it's your first build. The best heatsinks available seem to be the Thermalright Venomous-X, Thermalright Ultra-120 (TRUE) and the Prolimatech Megahalems... But results vary, and space inside your chassis is also an important consideration. Whatever you do, don't use the stock cooler, personally I am pretty happy with my v8 right now, but if I had to do it over I would probably get a Venomous-X. \\
Check out http://www.frozencpu.com/cat/l1/g40/...ml?id=3nhi9yYk
and see what will fit your budget and space requirements...