Since this is my first build I wanted some opinions from you chaps.
The build will consist of:
CHASSIS - Antec 900
MEMORY - 4GB (2x2GB) Corsair TwinX XMS2
MOBO - Asus Striker Extreme V2 NF680i SLI
CPU - Intel Core 2 Quad Q6600
GPU - 512MB XFX 9800 GTX+ XT
PSU - 650W TX Corsair
HDD - 500 GB Seagate ST3500320AS Barracuda
DISC DRIVE - Samsung SH-S223Q/RSMN
MONITOR - 22" Neovo H-W22 Widescreen LCD, Thin, 1680x1050, DVI, 2000:1, 300 cd/m2, 3 ms, Speakers, DVI Cable
Specifically I had concerns about the Motherboard. I have heard that the 680i is pretty good, but am wondering if it is too much for my usage? Typically I would use the system with Image editing, Video encoding, Sound recording, and 3D Modelling software. I am not much of a gamer, though I would like to play the odd game every now and then, COD4 etc. In which case, I don't think I will be opting for SLI. Is there a cheaper board that will make good use of my other components?
I also have little idea about the PSU. Do I need as much as 650W, or should I opt for something smaller and cheaper?