Wouln't you feel much better about your build if you took the time to do some reading up on motherboards compatable with a Q6600 and SLI support so you know you have a good system instead of just taking peoples word for it. Once you find a motherboard then you have an idea of what type of ram you will be needing which will narrow down the choice of ram and you can pick based on price, performance, and reliability. Then you would have a good base of system components. Now you can pick out drives based on your storage and media needs, I would recommend sata2 with a 16mb or 32mb cach and PMR technology. DVD drives just read reviews at newegg and find one with a good rating. Then from here you can start picking out a case and figure out what size and brand PSU would work best for your system.
If you really just want a shopping list at least give alittle more info about what your looking for in a system. I am assuming gaming because of the Q6600 and SLI but what about anything else, any other features you will need? It would really help the people on these forums who are so very helpfull to help you get a system together.
Ok thats a good start. So you basically want an AoC beast? I am waiting for that too and part of the reason I finally built my rig this winter.
If you can't find a good build here check out the AoC newcomers and tech section, they have alot of computer build threads too but almost all of those are like yours, made for AoC.
Check out Gigabyte's mobos, they are a pretty hot right now and alot of people are using them so if you need tips or advice people out there have hands on experience. But you really need to pick out a mobo to continue because it's going to effect what ram you need.
HD i'd say a Segate with the features I listed already.
PSU look into PC P&C, Antec, Seasonic, Corsair, I dont know for sure but your problay gona need like a 750w with good amps.
Case Antec 900 for sure, good airflow for OCing and looks good too.
If you can get a more complete build together with your own research people will be alot more helpful with the little details.
Western Digital recently released their 640GB HD. I highly recommend it, because it has the highest general market platter size (320GBpp) with only 2 platters, ensuring cool things like more silence, faster, and cheaper.
Also, look forward to Intel's 8core VPU thing in 2009 as an upgrade option, supposedly it can shred through Crysis without a video card or something.
I know you are going with 2 video cards for now but if you go with 3 later you will need a 1000 watt or greater PSU. This is not my opinion, it came directly from EVGA support.
I am saying if you can get that kind of PSU now you wont have to do anything but drop in your 3rd card and game. If you are positive 2 is all you need then maybe you could go with a cheaper mobo and go with a good Gigabyte SLI mobo and about a 750 watt psu.
If you dont mind squeezing out another 79.99 for a good PSU, Corsair is releasing their 1000 watt SLI certified PSU very soon. That is what Im waiting on myself so I am running on a cheaper PSU and a single card until it is available.