Looking for some advice/criticism

If u want SLI :

ASUS P5N32SLI-E or P5NE SLI

P35 :
ASUS P5K- ASUS P5K-E - GIGABYTE P35 DS3R (these only support DDR2)

ASUS P5KC - GIGABYTE P35C DS3R ( These support both DDR2 and DDR3) ,

other looks fine

Gigabyte GA-P35-DS3R would go great, like the person above me suggested.
Make sure you get the G0 stepping Q6600, they overclock a lot better and run cooler than the B3 ones. You can get one for $295 here:

http://clubit.com/product_detail.cfm?itemno=A1938452

Consider getting LG L226WTY-BF instead of the 226BW, better quality panel with wider viewing angles (160 vs 170 degrees).

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

For Cooling I suggest Tuniq 120 Tower or Thermalright 120 Ultra + S-Flex Fan, with these + your 1066 ram you should expect 3.2Ghz at the very least (with G0 stepping), 3.2Ghz is 1:1 ratio if you run your memory at 800MHz (400Mhz (x2)x8 multiplyer=3.2Ghz), so you still have a lot of headroom. Here are the links:

http://www.xoxide.com/tuniq-t-120-hsf.html

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

Good luck.

The Abit IP35 series should also be put up for consideration.
http://www.xbitlabs.com/articles/mainboards/display/abit-ip35-pro.html

I just built a computer with the Q6600 for a friend. it was the B3 stepping  but it is running at 9x333 = 3.0GHz @ stock vcore at about 55*C full load, with the stock heatsink! It's running on the GA-P35-DS3R.

Whatever you do, don't get an overpriced ASUS crapboard, you're better off getting a GA-P35-DS3R. I would rather get a Corsair 520HX or 620HX for that build, however the FSP will probably work just fine.

I think you're pretty much good to go.

asus maybe expesive but it isnt crap !

I've been using ASUS for a long time, and I love them. I consider them reliable and worth the investment. The only problem I have is they are sometimes overpriced for their products. But that still doesn't stop me from buying them.

The boards that support DDR2 & DDR3 have only 2 slots for EACH type of ram, so if you wanted 4GB you'd have to get 2GB sticks of RAM. Also not that you cannot use DDR2 and DDR3 simultaneously.

I built a computer with a Q6600 chip yesterday with an ASUS P5K motherboard, and it is great. I'm not sure of the overclockability of the motherboard as I wasn't interested in overclocking the motherboard in this build. I would expect it to be overclockable to 1333 if not more. I'm not sure if your RAM can handle 1333 though. Reading about overclocking to 1333 the RAM was usually the limiting factor for 1:1 FSB

Thanks everyone for all your advice.

I will probably avoid an Asus motherboard. I have had bad experiences with them in the past. I will have to do some more research on motherboards before I choose.

If the RAM I've selected won't make it to 1333 in a 4x1GB configuration, what might?

Thanks again.

The ram you selected will support even non-existant FSBs of 2133 running on 1:1, remember DDR stands for Double Data Rate i believe. (1066 x 2 = 2133)

I have made some more decisions and here's an update list of the things I plan on getting. This list is fairly locked in, so if you disagree with a choice please suggest some better and let me know why. Thank again for all the advice! (red indicates a change)

Q6600 Intel Quad Core 2.4 GHz (G0 stepping if I can guarantee it)

Tuniq Tower 120 CPU HSF

MSI P35 Neo2-FR motherboard

OCZ Vista Upgrade 4GB(2 x 2GB) 240-Pin DDR2 SDRAM DDR2 667 OCZ2VU6674GK

XFX PVT80GGHD4 GeForce 8800GTS 320MB Video Card

Western Digital Caviar SE16 WD3200AAKS 320GB 7200 RPM SATA 3.0Gb/s Hard Drive

CORSAIR CMPSU-620HX ATX12V v2.2 and EPS12V 2.91 620W Power Supply

Antec P182 Case

SAMSUNG 226BW Black 22" 2 ms (GTG) DVI Widescreen LCD Monitor

Since I don't plan on pushing past a 333 MHz FSB the new ram ought to do fine and it is significantly less expensive. I've also read good things about the Corsair PSUs and the Antec case although I am concerned that the PSU cables might not be long enough. Does anyone have any experience with that combination? Also, do you think I'll have enough airflow in the P182 to OC the CPU to 3 GHz?

I changed to a 320 GB drive for more space and to save some money. And I'm still considering my options for LCD monitor. The LG monitor recommended above is still in the running.

Thanks again for all your past help and future suggestions.

Why do you plan to limit yourself to a 333FSB?

This is a good 20% below what you can reach on this CPU w/o an voltage increases.
(Take note of the fellow doing 3.0 On Stock Voltage with the old stepping.)

You can also get 4x1Gb for as little as $125 if you shop around with a pair of respectable 2x1 DDR2-800 Chips.

Do you need 4gb of RAM? It is of no use to most folks.

looks good , but why not get a ddr2800 if u want to OC ?

I don't really intend to go crazy overclocking. I think getting 25% more with an FSB of 333 MHz will be enough. Also, I am under the impression that 4x1GB setups stress the memory controller more than 2x2GB. If that is incorrect, please let me know.

As far as 4GB in general, well, I probably will be using this setup as is for the next couple of years or so. With memory so cheap, why not get 4GB? Especially since I'll need Windows Vista to run DX10 games and I hear Vista is a crazy memory hog.

I hadn't actually noticed that the memory I chose was DDR2-667. I'll probably go with DDR2-800 when I make my final purchase.

Dont buy 4 sticks of ram. you are cruisin for a bruisin if you do. Not saying it wont work for ya, it just triples your chances of having a problem.

Dont buy the zalman. Buy the tuniq tower or better. Can't go halfass with that quad

He's buying 2 2GB sticks not 4 sticks... Wow some people need to read before they post. It looks good to me, the only things I'd change (And this is personal preference only, your list is fine the way it is) would be a GA-P35-DS3R mobo (I prefer Gigabyte over everyone else for mobo) and an Antec Nine Hundred case instead of the P182.

You could say the P182 and Nine Hundred are quite the opposites, the Nine Hundred excels at cooling, however it sounds like a jet turbine, while the P182 has pretty good cooling, but is very silent. Depending on how you feel about noise, you should consider changing case or keeping it