Compact gaming/multimedia rig

Hi,

I have built computers before, but never done as much research as I have for this rig.

Plan to build it in a month or 2, no specific budgetary constraints although my personal shopping mantra is to buy above mass-consumer but below the truly high end amateur-going-pro stuff - basically good bargains/value. (read on for what I mean)

Preferences: Quiet

CPU: i5-750 ~USD200

GPU: HD5770 *which make is best?* x2 ~USD320

Motherboard: Gigabyte GA-P55M-UD4 *to fit uATX case* ~USD140

RAM: GSkill [Eco]F3-10666CL7D-4GBECO x2 ~USD240

HDD: OCZ Vertex Turbo OCZSSD2-1VTXT120G 120GB MLC-SSD ~USD360

2nd HDD: Samsung Spinpoint F3 HD103SJ 1TB ~USD90

Heatsink: Thermalright Ultra Extreme 120 Revision C ~USD60

Front Fans: Scythe Gentle Typhoon 120mm D1225C12B4AP-14 (1450rpm) x2 ~USD36

Rear Fans: Scythe S-FLEX 80mm SFF80D (2800rpm) ~USD12

PSU: Corsair CMPSU-750TX 750W ~USD90

Case: Lian Li V351 Black ~USD100 *The only non-negotiable bit is the size of the rig

Optical: Toshiba 1612 DVD-ROM *I have plenty of scratched and poorly burnt discs that need a good, non-fussy reader
*Plus some other random DVD writer - any recommendations?*


Any comments would be most appreciated. Particularly about whether or not the components would fit into the case!!! (Esp. the CPU heatsink)

Spent a significant amount on cooling, since I am cramming rather 3 rather hot chips in a small space - might even have excess cooling capacity to overclock some!

As for monitor wise - I currently own a 800x600 mini projector which I can project about 100" images happily in nighttime conditions, and will be getting a 40-42" 1080p LCD TV which uses 1920x1080 as a main monitor.

Also - will the onboard sound be sufficient? Is there significant improvement to be had from a sound card?

SSD - expensive, but affects performance enough to be worth it.

Would like someone to estimate how long this rig will last...