SB Build & questions for the pros

Here's the build (price in cdn $), questions follow

CPU: i7 2600K 309 $ (lowest)
Because I will likely overclock and some of my applications will use HT (Matlab)

Board: P8P67 171 $ (lowest)
Didnt see the need for the deluxe or pro

SSD: Intel510-120 Gb 296 $ (PM to 282 $)
Cant wait for the vertex 3 ! And I dont need further extra storage.

Memory: Gskill ripjaws 8 GB DDR3-1600 96 $ (PM to 88 $)
Seems to be suggested a lot on the forum

GPU: HD5770 129 $
This build wont be used for gaming at all. I just picked
an affordable card with reasonable spec (I think)

Cooler: H-212: 30 $
For the overclock (aim at 4 or 4.5 Ghz)


Case: Fractal R3 115 $ (lowest)
Suggested by forum users because i want a quiet good looking case

PSU: Antec650 70 $ (lowest)
Wont be using more than 1 GPU so I dont need the xtra power right ?

DVD drive: Samsung SH-S222A 27 $
not sure i need dual layer but its cheap anyway


1) Is this all compatible ?

2) Anywhere I can save without compromising much on the performance ?

3) If I chose not to overclock, getting a H67 board, no GPU, no "K" cpu, using the stock cooler, etc would save me quite a bit of money. But will the performance be noticeably lower ?