If you guys say it doesn't work, then I'll believe it - maybe I'm just getting lucky so far? So, now I'm switching over to some castsequence macros.

Since I'm using a homogeneous group - all the DPS has the same spells, all characters share the same GCD times - I'm not sure what the benefit of a click macro over just a castsequence macro would be. For my tank, I know that once I get all the abilities for 96969 I'll be at the limit of what I can cast, With the DPS it's a reasonably full cycle too, if I write it correctly. I'll use one of the macro extension addons to make sure I have the space for the long macros, of course.

Eventually I plan on having one of every class on each account, so there will at some point be a DK+4Ret possibility, or 5 Shaman or anything like that. I'm going with the Paladin tank right now because they are so incredibly easy to tank with and I want to get to 80 & farm up badges for heirlooms before I start any new characters. The only reason I was considering a shaman before that would be for the reincarnation - but really, complete wipes are so rare right now that I can't see the time involved in getting it to level to be worth it just yet.

Thank you all for the replies - good things to know and think about!