One problem I've run into is that I can't seem to upload a userpic, though I'm still trying. I just want to add the same one I use on Livejournal and it comes up as a little blob then gives an error message. So far this has happened using Opera and Firefox. When I've posted this I'll try again using a different picture, just in case the file is corrupt or something, but it's not the most useful start...
Edit - tried copying it from my livejournal instead and that worked, so should be OK for now.
Anyway, what I'll try for a while is cross-posting most stuff here and to Livejournal, see how it goes. Wish me luck!