what ram do u guys recommend for this spec?

[Sano]

CPU AMD Athlon 64 X2 Dual-Core Details
Motherboard Asus A8N32-SLI Deluxe
Graphic Card XFX Nvidia 7900 GT XXX Edition
RAM OCZ PC3200 2GB 1024MBX2 EL DC GOLD GX XTC
Hard disk Seagate ST3300622AS
300GB SATA II 300Mbps 7200rpm HDD 16Mb Cache w/NCQ
Case Thermaltake Eclipse DV
PSU Cooler Master Real Power 550W
Cooling System Thermaltake Bigwater 745 Liquid Cooling System

OCZ might be too expensive is there any other brand ram that's as fast as this ram which is stable so i can do a bit of overclocking? and can someone tell me if all of the above spec are all compatable?
Also and i'm not sure if i should get the cooling system or i wont need it since i dont think i need to overclocking other things?

Sry for being noob and ask so many questions but can someone plz give some advice

 

[a1ien]

I wouldn't worry about the liquid cooling. Unless you are planning to do some serious OCin' on your CPU then don't bother with liquid cooling. If you aren't OCing at all, just stick with the stock cooler and save yourself that 170 dollars towards buying yourself some games or something.

 

[Fungalberry]

Good system. One suggestion: Buy 2x1GB A-Data Memory off www.newegg.com. Save some cash and get the same preformance. This is the exact same kinda RAM that I'm getting, so. Have fun with you're new rig!