If your getting a video card, obviously you don't need onboard video. Only get SLI if you cash to burn, otherwise it's not really needed. IF you want bang for buck, get a 6600GT, or if you can spare it, the ATI 800/850 series. For good brands: RAM - Corsair, Kinston/Kingmax, Geil, OCZ Harddrive - Western Digital, Seagate, Maxtor Sound Card - Not really needed unless your fussy since most (if not all) motherboards have onboard sound. If you insist, just get Creative.