Nice to see that the upgrade is going well. I have also seen most of the problems above so I'll go ahead with the upgrade as soon as I finish my complete backup.

The article above mentions a backup plugin. I just want to caution anyone with a large website on the use of Backup Plugins. I host my site at GoDaddy (will be moving to Dreamhost soon) and after trying to use a backup plugin, GoDaddy shut down my site because the backup plugin was crashing their server. I am backing up via ftp now prior to my WP 3 upgrade.