I'm setting up my Quicksilver 2002 Dual 1GHz as my main OS 9.2.2 Machine as well.

Check out this USB Card Thread for starters.

I'm migrating the internals from my DOA DA over to the QS'02 and I'm considering running X, in Classic mode, as my working environment just to get USB 2.0 support under 9.2.2 running in the Classis environment.