Everything looks good so far if you do not plan on cooling your CPU other than the res you picked. The one you have on your list is Rev 1 which is know to have some leaking problems and isn't as good as Rev 2:
http://www.sidewindercomputers.com/swreformcpur.html
Also the water block you chose is out of stock, but available from other venders. You may also want to consider other water block options for the GTX480.