Sold the IIfx. Realized that, yeah, it's the holy grail of '030 Macs, but, at the same time, I have limited space, the Q650 is more powerful, and has upgrade options that the fx doesn't have, so it's gone.
I also picked up a couple items, Intel Mac-wise. A Mac Pro 5,1 board to replace the older 4,1 board in the A1289, since I forgot that the SMC firmware is different between the board and the processor tray I plan to use. And, I also picked up another mid-2012 A1286 MBP. This one is in better condition than the one I picked up last year, so it should have less issues.