OpenRDX may feet your need.
Only one addon to replace many ones.
Use the desktop feature to switch your UI depend your spec, if you are solo, group, raid, pvp or arena.
Switching a UI don't need a ReloadUI.
http://files.filefront.com/OpenRDX7+.../fileinfo.html
OpenRDX for dummies :
http://www.wowinterface.com/forums/s...ad.php?t=21934