Just a tip for those that are just breaking into the solo world:
I predominantly solo in Prot spec, I'm just a tank at heart. There's quite a few fights that people suggest you go DPS for, because you're trying to beat some kind of timer, whether it's an Enrage timer, a debuff stack #, or anything. But if you're not confident in your DPS gear or playstyle (I know I'm not really a solid DPS), don't be afraid to utilize trash pulls as Vengeance buffers. I'll use Gurtogg as an example. Probably an easy fight without them, I just remember I used to have a small problem killing him. So, I like to instead pull all the trash in the large room before him, and bring them down with me. I back into a corner, and let all that trash (Like 20 - 30 mobs I'd say?) beat on me, boosting my Vengeance considerably, and allowing me to drop bombs on Gurtogg.
Don't get me wrong either, it's completely possible to pull way too much shit and not be able to crawl out of the damage hole you've dug. But usually second wind can take care of most of it. Just a neat little tactic that works in some situations.
Oh, one more word of advice. If you're in the Wing of Mortal Pleasures in BT, do not get cocky and pull a whole room full of the sluts. I was stuck getting 'love tapped' for like 15 minutes, spamming DR, waiting for that .2 second window where I wasn't stunned. I could have just DC'd out, but I knew I could do it damnit.