Do you have multiple gear sets?

To all the hybrid classes out there - do you have multiple sets of gear so you can play more than one spec?

I've been collecting healing gear for a while now and I'm starting to get pretty satisfied that I can be just as effective as a healer as I am for dps. I've got my bonus healing up to +1352 unbuffed, mostly kara-level gear. I'd still say balance is my main spec but its just nice to have that much versatility.

I've got four different sets of armor. One for healing, one for ret, one for tanking, and one for shockadin spec.

I was checking out the dungeon sets for rogues...the tier 1 has two sets?

Shadowcraft is instance drops. But the Darkmantle set is quest rewards. So what quests give the darmantle set?

If a tier has 2 different sets it is probably for different specs, like all druid tiers have 3 sets, for balance, feral, and resto. As for your other question I'm not sure.

Shadow craft set is for around 54-58 and is blue..

The Darkmantle set is an epic set for Lvl 60...obviously if i can get 1 i'll get the Darkmantle except for the fact that i dont know which quests gives the items

I know for the priest set, there was a few quests in the Major Cities (only one I can think of off hand was the one in the room with King Magni Bronzebeard), which you bring in the lower leveled one, with a bunch of extra materials of different sorts, and they give you the higher leveled one.