Alright, I flashed "Storage Options miScroll GB ROM" successfully. CyanogenMod7 looks nice.
One problem - my WiFi seems to be busted. I've already tried wiping it again and reinstalling. I don't know much about debugging Android/linux, but is there anything I can do to help someone else to help me get it working?
I'll sideload a system info app if someone points me to one that provides more info about the wireless chip.