I don't think most of the strategies I've used used will work now but most are simple things that people know already.

Shaggir has taught me alot about setting up macros, addons, and identifying what spec my target probably is by looking at their buff (yes I was that much of a noob and still am), unlike him since I box with 5, I somewhat had to come up with my own strategies that work for me in arenas.

As I stared before I really do not pay attention to the comp of the team much, my thing is play the team depending on how they play you and go for the weak targets.

Weak targets would be most of the classes (especially druids, shamans, & hunters) that come a little to close to me where I can just shock & blow them up or just guys who just play stupid. Sometimes, if teams is just running from me or chasing me, I would actually chase the "weak target" at the right moment to blow them up and drop totems right after to avoid fear bombs.

I am always droping new set of totems when I'm moving, even when im just chasing around pillars, incase they are taking out my tremors.

And what some have heard about taking out the DPS first does not apply as well when your 5 boxing. Taking out a rezer and just camping his body until ur cooldown expires is the key when ur against a 3 or 4 rezer teams. I've gone as long as 45 mins in a game with like 30 kills before.

There alot of other stuff but I think its all about experience, just play as many games as u can.

Gotto go now my WoLK just finished installing .