1) I would get the HAF 922 over the HAF 932. It has similar performance, size & cable management at a lesser price.
2) I would hold off on your GPU purchase, as the ATI 6000 series is to be released very soon & soon to follow the Nvidia GTX 580 (what the GTX 480 was meant to be with all CUDA enabled). This will 1) provide better performance & 2) drive cost down on current cards. Also, I recommend the EVGA GTX 460 SC EE over a GTX 470. They are close in performance at a lower cost with better power & heat consumption.
If you haven't purchased the PSU, I would look to drop it down to a 650w or 550w (specially with a GTX 460) power supply. You are running a single card motherboard so you won't need more than a 650w PSU.