Spirit works well for moonkins too. I am able to dps (when i'm offspecced for it) with all my healing gear on as a boomkin(except for some +sh*tloadofhitrating pieces ofc) and I manage enough dps to get along with all the rest. Ofcourse I prefer to heal, I love to do that, but if we're full on healers, I can at least do some dps.
I love the dualspec feature, it's so easy! Atm my offspec is tank, so I bring the perfect raid utility. Being able to tank or heal, and in desperation, I can respec to moonkin. (man, we need a tri-spec)
Man I don't know how I got things done before dual-spec Seriously, if your money allows it, go get it imo...
Edited, Jun 18th 2009 6:56am by Thorpedro