USB 3.0 is no longer for richy-rich chumps. The low-cost crapgadget standard, Brando, has its own line of USB 3.0 gadgets now: a 4-port hub and a USB 3.0 to dual SATA cable. Times are good, my friends.
The hub is your normal star-shaped model with four ports wrapping a round hub and a series of indicator lights up top. It supports both USB 3.0 and USB 2.0. $48.
The USB 3.0 to Dual SATA Cable offers to support two SATA 3.0 hard drives on one USB 3.0 cable. Kind of self-explanatory, but still no less awesomely useful. $36.