Healer/Tank

[MockyCow]

Does anyone here know of any good tanking specs and/or healing specs for raiding?

Class choice.. Stat placements.. ability choices.. etc.

[Junts]

There's many, frequently capable of other things as well.. DDO doesn't require 2-3 specific specs for each role the way that WoW raiding might.

If you make a cleric, bard or favored soul with enough levels to pick up mass cure light/moderate, maximize spell, quicken spell, a superior devotion item and +40% in enhancements, you can heal a raid. The bard uses scrolls for the heal spell, and cure critical wounds, the cleric and favored soul take the heal spell. Higher quality heal specs exist, and can be convenient, but aren't required for any healing task presently existant in game.

Similarly, there are builds available to provide paladins, fighters, rangers, rogues, monks, clerics, and possibly even favored souls enough armor class and hit points to tank just about any task in the game, though the rangers and rogues may not quite have enough hit points for a couple tasks.

[IronAngel]

Under class discussions there are thousands of build ideas.

[Shade]

Similarly, there are builds available to provide paladins, fighters, rangers, rogues, monks, clerics, and possibly even favored souls enough armor class and hit points to tank just about any task in the game, though the rangers and rogues may not quite have enough hit points for a couple tasks.

I like how you left out the only tank class in the game that can both tank every quest and raid in the game very easily while also dealing the most damage of any party member. Also argueably the best melee class for damage mitigation in epic quests. Also the only class who was first to tank and beat pretty much every difficult raid in the game on elite.

I don't even need to name the class, it's the one you purposely left out.

Biased much?

Advice:
DDO is a game where you rarely need a so called tank, and when you do it's never needs to be complicated. Just get the guy with the most hitpoints and DPS to do it and things will go well.
Healing is just as easy, any favored soul, cleric or bard with a pure/mosltly pure build can be a solid healer.
The biggest factor in both of these comes down to player skill, not build.