new system with Q6600 need advise.

You should go with Gigabyte GA-P35-DS3R, a great board with nice overclocking features, very stable too.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Q6600 is a great choice, if you plan to OC it with air cooling I'd recommend getting Thermalright 120 Ultra + Arctic Silver 5 paste, with quality DDR2 800 ram you should be able to OC to 3.2Ghz stable at the very least.

http://www.xoxide.com/thermalright-ultra120-extreme.htm...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...


GTX, I recommend going with the basic $500 EVGA 8800 GTX just for the step up program EVGA exclusively offers, considering that the monstrous 9800 GTX is suppose to be out somewhere in November, I'd really recommend sicking with EVGA.

http://www.evga.com/stepup/default.asp?switch=3

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

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Q6600 is a great choice, if you plan to OC it with air cooling I'd recommend getting Thermalright 120 Ultra + Arctic Silver 5 paste, with quality DDR2 800 ram you should be able to OC to 3.2Ghz stable at the very least.
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I would like to get water cooling this time, you saying GF 9 has been announced for November?
havent checked thru nvidia deeply but havent heard of GF9 yet.

But yeah if so, might consider to wait and order all in November then.
if so ill wait and guess get all components thru you guys so i dont fk up  

and yeah .. Q6600 if can be OC to 3.2 thats sweet, very even   .. 800 mhz oc on a quadcore im in love haha

I have the Q6600 clocked to 2.6 ghz on air with a cheaper Arctic cooling HSF with no troubles.
Get the G0 stepping Q6600 and you should see even better results.
I have 4 gigs of the G. Skill
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Good luck and have fun