Thanks for the replies ... i'm feeling a lot better about taking another shot. I suppose I should respec to Holy if I'm going to be running the WOTLK instances (quest grinding is too hard right now) ...

@ Kayely: Thanks for the idea on grouping my toons all together - makes sense. Question - do the adds only respawn if all are killed? Can I kill all but 1 and continually poly the last one so they don't all respawn?

@ Feider: I'm using a new core i7 920 processor with 12GB of ram and a single Asus 4850. I'm running all 5 on this PC using this layout (on hotkeynet). I have settings on lowest for all 4 windows on the right, and medium settings on my main window with view distance all the way down. Soon as I turn view distance up on my main window (only outside tho, not in instances) , it lags ... can't be my processor, as I've got the fastest you can reasonably get and plenty enough ram - must be my video card.