For the pump, im saying this one
http://www.frozencpu.com/ex-pmp-09.html the other one is just far too powerful and actually requires it to be plugged in to an external power outlet, so you dont really want that.
About all the other stuff, it all looks fine and dandy, at first the GPU looked way too extravagent, then i realised it was for a SLI setup, so yeh, i would expect it to be expensive, maybe consider buying two seperat GPU waterblocks, might be a bit cheaper..... no