Here is my mining rig currently 47 ASICminer USB sticks along with a 7970 and two 7850's producing about 17 Gh/s. I started with buying from Newegg/Ebay and graduated to buying through group buy's.
Looks cool, I noticed there is space for one more. Why you run the GPUs though?
I have the GPU's mining BTC because I am trying to squeeze out as much BTC as I can.
I probably should have them mining lightcoin and convert the LTC to BTC though. Just haven't researched LTC enough to make the jump yet.