Upgraded Ubuntu from Dapper Drake to Edgy Eft last night … and it was surprisingly painless. Sure, it took all night to download, and it did require me to fiddle about using the wireless access point as an ersatz eth0 to get ndiswrapper happy, but I’m not complaining.
I’m still not running in 64 bit though, as I don’t know if there are drivers for some of my cards in AMD64. It’s not a priority, though — everything’s adequately fast as is.