Do's and donts would be much appreciated

Intel Core 2 Duo,Boxed, E8400, Socket 775
OCZ OCZ2RPR800C44GK,4096MB, 800MHz, 2x, DDR2, PC6400
Apacer 15-in-1 card reader
Hard Drive: Samsung SpinPoint F1,7200RPM, SATA II, 32MB, 750GB x2 RIAD0 conf.
Motherboard: GigaByte GA-EX38-DS5
Graphics Card: Club3D Radeon HD3870X2,DDR3, PCI Express x16, 1024MB
Monitor: HP w2207h 22" Wide flat panel
Casing: Antec P182, Black
OS: Microsoft Windows Vista Ultimate 64bit
Cooling: Scythe Mugen “Infinity”.
Sound Card: Creative X-Fi XtremeGamer Fatal1ty PR
DVD Burner: Lite On LH-20A1S, Serial ATA150
Power: Zalman ZM750-HP,750Watt