No holds barred gaming system build -- suggestions/improvements?

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Case suggestion:

Go with the Antec P190

It comes with dual Antec PSU's which would give you more stability when running 2x high-end graphics cards and it probably already has all the fans you need so you wouldn't need to buy any others.

If you're not sure about it, watch this video review from Tom's Hardware:
http://www.tomshardware.com/site/flash_videos/antec_p190_case_review.html

Also, definitely go with all SATA hardware inside your system, especially the DVD writer. SATA cables are very slim and will not hinder the airflow inside your case as much as IDE cables will (you could go with the nice IDE cables but then the price to buy them would actually be MORE expensive than getting an SATA DVD writer in the first place).

About the monitor, I've heard great things about BENQ 24" monitors. My brother-in-law has a couple and he just bought another one. I'll ask him later about the model#.

Oh... and if you get a chance, either spend the extra $$$ on a QX9650 (the new Penryn based Quads) or wait a little while longer to get the slightly lower versions coming in Q1. The QX9650 can EASILY be clocked to 4GHZ on air cooling and the numbers are crazy. It's WAY better than the previous EXTREME CPU's. For a full read-up, read Tom's Article on the Penryn:

http://www.tomshardware.com/2007/10/29/intel_penryn_4ghz_with_air_cooling/

Oh... and one last thing... since you're going uber with everything on the system, you might as well go with DDR2 1066 RAM instead of 800... the prices have come down a lot recently and you wouldn't have to pay so much for them (well, at least for 4x 1GB versions)

http://www.newegg.com/Product/Product.aspx?Item=N82E16820145033

other deals on 1066 RAM:

http://www.pricewatch.com/memory/ddr2-1066_pc2-8500_1gb_kit.htm

Man... wish I had as free $$$ floating around as you do... I had to get by on a system build for around 1/2 of your budget : (
 
When are the QX9650s coming out? Seems like they're a big improvement, but I can't find anywhere to buy online. Couple references to November 12th...but I don't want to get into a situation where they are sold out and I can't get one for 3 months or something.
 
Can anyone tell me if the QX9650 will fit the mobo I've selected (eVGA 680i?) If so, I'll wait for one of those...are there any other pieces that won't be compatible anymore if I use the 9650 instead of a 6800?