+1 PCP&C 750
+1 quality (OCZ, Corsair, Adata, Crucial, Kingston) DDR2 800 (since you have a 1066FSB processor)
I'd go for a Gigabyte P35-DS4 instead of any DQ6 (especially the CrossFire-only X38/48)
I'd also change the 5000AAKS to a 6400AAKS less $/GB (currently the lowest on Newegg) and much higher performance.
I'd opt for a 8800GTS 512 instead of the 8800GT for the money you saved by not getting DDR3/DQ6.
Edit: I love Lian Li, but the case is a little overkill aswell. Go for an Antec 900, 300 or P182 to save a little money (or even the awesome cooling of an Antec Twelve Hundred, you'll be the envy of every uber-geek in the neighborhood, myself included).
^Agreed on the DS4 option. Also add to the list X38-DS4.
If you are planing on getting RAM natively higher than DDR2 800 be aware that there will be compatibility issues. Many users reports and my personal testing has shown that there is a very good chance you will run in to issues with RAM higher than DDR2 800, such as DDR2 1066. I recommend you get quality DDR2 800 RAM and run them at 1:1 ratio or overclock the RAM. This issue dose not apply to DDR2 800 RAM that has been overclocked.
This mainly apply to P35 based boards. Do make sure that if going for DDR2 1066 RAM that they are compatible with your motherboard choice.
Why are you suggesting X38? The ONLY reasons to go for an X38:
1) You are going to use ATI and want CF.
2) You have a PCIe 8x RAID controller.
3) You need very high FSBs for higher overclocking.
2) More than likely, NO
3) NO, because the Q6600 is 1066FSB, and can go to 3.6 (400*9) before you even begin to overclock the DDR2 800 memory, most likely, with good sticks you could run 3.8GHz+ depending on the CPU sample, any P35 board on the market will do 1700FSB (425 quad-pumped) easily
Thanks for all the advice guys ^^ really helpful and i honestly wasnt expecting that much response but so far it's been great.
Anyway, i think i'm gonna start changing the current setup in a few minutes i knew about the ddr3 thing but it was chosen already as a kind of "i needs the most expensive newest stuffs yo!" so that info to back up what others and i have said may be helpful.
Ok, so ive changed the parts list quite a bit, here goes.
You will need a nvidia 780i/790i chipset motherboard to enable SLI.Besides, you're getting a 1680x1050 screen which does not need any SLI setup to run well, simply put, unless you do 1920+ resolution, it's a waste of money. I believe you're still falling into the more+newer+more expensive=better trick you talked about in your latest post. If you're doing mostly gaming, I would suggest an E8400/E8500 as a less expensive chip that'll perform better than a quad for most every program out right now (besides 3D programs and video encoding).
So I'm the friend he's trying to help and I was looking around and what about these changes?