I took a break from it for a while and just got back, what I think you want is this ... minimally two good 5man groups where the tank and possibly the healer from the sidebar group can dual spec. There shouldn't be the need for a lot of buff mixing, if you go for a max buffs group you likely are going to loose out on a lot of dps with idle issues. You also want to swap out specific characters entirely at times, but that shouldn't be something you do often.

In this comp layout I have what i normally run with and what the offspec is in the opposite group (shaman are dead to me right now)

http://raidcomp.mmo-champion.com/?c=...0000egiiidi000

The group I like best is this I think, it has good feel to it dps wise and the tanking is pretty natural to me. Both tanks function pretty sick with aoe templates and cooldowns. The dps is just multi step ezmode no procs watching. The healing is just vuhdo isboxer gfx work.

http://raidcomp.mmo-champion.com/?c=...00000000000000

However I am just doing pve.

I really don't understand your issue with talents, in the end at 90 you have the same 'talents' you would have spec before. In some places you have even more like blood having anti-magic zone ... which is awesome.