Member jbarley recently very generously offered up a Cube CPU upgrade on here(along with some other Cube parts). I finally talked him into at least letting pay him a token amount for the upgrade, although I still can't thank him enough for his generosity. In any case, I had thought installing the upgrade would wait until after my thesis defense(15 days and counting) but all work and no play makes Johnny a dull boy so I thought I'd tackle it this evening. I've had Cubes apart enough that it really was a quick swap-the whole thing took about 30 minutes. I'd previously installed a base fan-a requirement for all CPU upgrades-so didn't have to mess with that. I took a few pictures and will post them after while. In any case, the card he sent me was an 800mhz Sonnet upgrade. This is actually the first Sonnet I've had, but it made me appreciate why they are so loved in the secondary market(and why they carried a premium when new). This one-like many of them-is quite literally plug and play. I put the computer back together, booted it(into OS 9 initially) and it was recognized correctly immediately. It's amazing to me how much difference going from 450mhz to 800mhz makes. Screen shots below, and I'm going to run Geekbench and Xbench in a few minutes. I will report back.