Ok, I was able to test/run my addons (ChatBuddy, ChatWatch, WoWScribe, Hunter's Mark Alert & Group Targets). All work, sort of... PlaySound with an external sound file doesn't appear to work (and my husband says that's known), so ChatWatch & HMA are not uploaded. Logging didn't seem to work... no errors, just no file... so WoWScribe isn't uploaded. ChatBuddy & Group Targets are both up on the Cataclysm Beta list & updated in the normal addons list (the changes were just making sure variables were used, etc... so no problem with live really).
I ran Fortress & Broker_Everything (I missed them)... just removed the tracking part of BE (never used it myself, but the new tracking requires a rework of that). Worked sweetly.
Haven't tried other "must have" addons, but I haven't been raiding in Beta, so no need for those
(Btw, anyone have a way to remove that silly "mark around my char to tell me I can cast a reactive" thing? I don't mind the glowy spell buttons, but I don't want/need the "ice" around me... kind of pulls me out of the immersion.)
Rhianidd