I have 4 Dell PowerEdge 1750s with empty PCI-X slots, and I am wondering what sort of there is to be had with them? I know I can get a SCSI card in there for any eventual expansion, but what I really want to do is find an undervalued GPU card in there with as many cores as possible. I'm open, though. I'm not sure how to go about finding all the cool stuff that would fit into such a configuration. Thanks!