with all due respect hastypudding couldn't be further from the truth where druid support is concerned. I came over from wow also .. playing a resto/feral there ( anihsod ). I also play a Cleric. The biggest difference is .. Cleric's can heal better but are weak in damage, druids can't heal as *easily* but do a lot more damage and have good crowd control.
low level Vigor is your rejuv and cure XXX wounds is your nourish. later on regeneration is your regrowth and mass vigor is your wild growth. still later heal is your HT and mass reg.
It's important to remember that in DDO you are as much a dps as a healer, and druids are as much cc/dps as they are healers. There is a huge huge HUGE misunderstanding in ddo currently concerning druids. A lot of " druids are pure hybrids but don't do anything very well". It's completely inaccurate.
http://forums.ddo.com/showthread.php?t=389292
That's a recent thread by a druid who's focused on healing .. his build is included on the 2nd page of the thread.
Builds in ddo aren't even close to the cookie cutter approach in wow, there's a LOT of room to customize according to play style, goals, etc.
If you'd like i'll post my build ( currently slacking off at work ) and maybe offer some suggestions on spell selection, etc.