Everything looks pretty nice and is compatible.
I don't really like the way you have the hard drives setup. If it was my system, look for the fastest hard drive possible for your OS and main programs. Then look for something large and fairly priced for the storage drive for your music, pictures, videos, and documents.
I'm not sure exactly what sizes you want for each, but here is a hard drive chart showing
READS and then
WRITES. Other benchmarks
HERE. The higher the number the better. Maybe go back and rearrange that.
Anther option is to just get 1 large drive like a Western Digital Caviar Black 1TB, 7200 RPM, 32mb cache and just partition the drive. For example,
[-------100gb-------][--------------------------900gb-----------------------------]
Main OS / Prog. All Data storage, music, pictures, videos, etc.
Another thing to consider is an SSD (Solid State Disk/Drive) for your main drive but they are fairly pricey, but coming down it seems like everyday. Then pop a 1TB HDD (Hard Disk Drive) for your storage.
It would be a nice system for sure. As for if the case is too big, that's up to you. It is a Full Tower, so it will be quite large compared to most OEM computers like a Dell that you would see. I like big cases personally.
Hope that helps and be sure to ask questions if you'd like.
EDIT: My apologies, you had specific questions.
Is the power supply optimal?
Yes, it looks good. Most people tend to agree that Corsair makes the best PSU... so take a look at this
650 watt Modular PSU It annihilates the Ultra you linked too, on second thought, I'd change to that one if I were you.
Should anything be upgraded or downgraded?
Everything looks pretty nice. Just an FYI, if you can afford it when the time comes, get the 5870, its their flagship... very nice. And, also when the time comes, see what ASUS has to offer for motherboards with USB 3.0 and SATA 6gb/s since both of them just came out. Then look for a hard drive with 6gb/s too (might be more expensive though)
The AMD/ATI setup okay?
Yes, AMD makes good processors and is usually considered much more bang for your buck since they are cheaper than Intel. I think it's safe to say the Core "i" series of Intel processor are extremely faster,
but they come at a price. Do some research on a Core i7 socket 1366 or Core i5/i7 socket 1156 and see if those prices fit in your budget.
CPU HIERARCHY CHART <-- take a look.
OK, ask questions if you'd like.
Edited by Ferrari, 27 March 2010 - 09:07 PM.