I’ve just put my cowboy hat on and did a WordPress 2.9.x -> 3.0 automatic upgrade (after backing up the database with the WordPress Database Backup plug-in). It completed very quickly and the site seems to be running much faster now. The theme will take some time to get right but I opted to put the new Twenty Ten default theme in place because the layout options are nice and I wanted to get to grips with it ASAP. So far so good. All of the old functionality seemed to keep working, even though much of it is not 3.0 certified yet. I just needed to replace my widgets after switching to the new theme, but that was expected/normal. The cowboy hat’s back in storage again now until I decide to do some other ill-advised stuff upgrade my music site.