I'm trying to find out whether all these bits I have purchased are compatible with each other - I'm a newbie to hardware, but the sales pages only list the basic information. MOBO: Nvidia NForce 780i SLI (comes with built in 7.1 surround sound, therefore, do not need soundcard) RAM: OCZ 2 GB DDR2-800 RAM PROCESSOR: Intel Core 2 Quad Q6600 GRAPHICS: Geforce 260 PSU: Thermaltake ToughPower 850W Modular Power Supply Drives: AOPEN DUW1608/ARR [CD-ROM drive] LITE-ON LTR-48125S [CD-ROM drive] 3.5" format removeable media [Floppy drive] Maxtor 6Y120M0 [Hard drive] (122.94 GB) -- drive 1 Maxtor 6Y120M0 [Hard drive] (122.94 GB) -- drive 0 Also - what kind of wattage for a power supply would I need? Is 1000 watts over kill for this system? Or could I make do with something a bit lower/cheaper? Thanks!