Priest Leveling

I'm currently leveling a Night Elf priest on the new server we picked out. I've been dappling between all three specs at some point, and find that I enjoy aspects of each, but don't specifically lean towards one. I started with Discipline until level 32 simply because Shadow was not an efficient leveling build until I received Shadow Word: Death and the Glyph of Spirit Tap. Since then, I've been enjoying Shadow, and think I might stick with Shadow once I hit 85. I've always struggled with priest heals, sometimes because I feel overwhelmed by the toolbox. One of the problems might be that I haven't really leveled from start to finish, and since the LFD tool is now here as well, I can sufficiently grow with the talent specs.
I struggled a bit healing in the early levels, specifically while doing SFK. After a few teeth to nail fights, I respec'd Shadow and went DPS through SFK. I found I wasn't the problem while I watched another healer, in heirlooms, struggle. I also discovered the strangely inefficient leveling spec that is Shadow at lower levels. It doesn't make sense to me, but alas, once you hit 32, it's all in the past.
For healing, after the horrific experience that was SFK, I ended up switching to Holy when I hit 30 and got my dual-spec. Holy is a different story. While it doesn't have the DPS value that comes with an Evangelism/Atonement Disc build, I never ran out of mana and had the capacity to heal large amounts of damage when faced with it. I did not find this when I did Disc.
I do find Holy kind of boring.  Of course, it's cuz I'm  at lower levels. But it helps that I can queue as both DPS and Heals and I tend to get DPS most.  While tanks are still hot commodities, I guess most people think that being a healer will get them faster queues at lower levels.
The other problem I find is that I can never get the gear I want/need. Not only am I competing with a huge amount of Ele shamans and Balance druids, but since everyone can Need, I've lost robes to hunters and wands to paladins.While I understand the need for such a looting system at lower levels, sometimes it annoys the hell out of me. Speaking of which...
A while ago, when I was leveling a mage through LFD, I encountered a Shadow priest who flipped out on a healing Shaman for rolling and winning a cloth robe. I stood up for the Shaman, saying that caster leather is a bit rare to find at these levels, since most is designed for the more "efficient" leveling build, ie. Agility leather. The priest of course, started telling me I was dumb and that boohoo it's not fair that I can only wear cloth. Then we had someone else jump in and end all our discussions by reminding us that this is just a game. (btw. I hate these people. These people act high and mighty by saying oh noesss it's just a game. Yes it is just a game, but don't demean the way people spend their time.)

Anyways, aside from that...a side...
I've hit about 54, and respec'd Holy back to Discipline. I'm going to see if having Divine Aegis will help me out, but I have yet to try it out. I still enjoy Shadow, even though I have no AoE abilities, which my Paladin partner finds kinda frustrating (TOO BAD ANTHONY).