Aaron,
I was looking at whats on your list and think I can help you. You want a cool looking PC that will handle AH2. Well your on your way with alot of the right choices. However I would change a few. Here are my suggestions
Get rid of
Aspire 520W PS..... -$55.50
Aspire Turbo Xcase -$44.99
Speakers................-$7.99
Video Card.............-$104.00
Total.......................-$214.48
Replace with
Dynapower ATX case with 420W PS......$32.00
Case ATI 9600XT.......................
......................$ 164.00
Video Card Total........................
.............................
+ $196.00
Leaving you $18.48 To goto best buy and pick yourself out a quality headset to use in the game. If you must have the speakers add them back you still come out less. You dont really require the upgraded PS with the 430W PS that comes with the case I showed you. It should have pleanty of power to run all your accessories. And that case is very simular in looks and function to the one you have selected already, just cheaper.
This will give you what you want, a cool looking PC that will effectively run AH2 and cheaper.
RHIN0