My druid is still lvl 80 but is running Feral(Kitty)/Balance currently, all through ToC and ICC I was running Feral(Bear) and either Kitty or Balance, was constantly changing between the two the reason my second spec was always changing was because I enjoyed both specs and just couldn't decide which to keep as my primary offspec.
As for you I'd say Resto, you already suggested you were planning on keeping Resto so that was a no brainer, and probably Bear. Gearing for both can be a pain but you'll be more viable in PuG's. If you run with your guild though Resto/Kitty would probably be better, not every fight will you be expected to have 3-7 healers sometimes you'll drop one or two healers to go DPS rarely will you drop a healer to go tank.