I agree with everything the first poster said, except that I find Super Leap to be the best travel power, especially for areas like DA as a AoE blaster, I need to find new prey fast, and 1 giant leap up rapidly hitting tab usually does it for me.
Oh, and if you're fire you don't really need Hasten, I dont have it, I'm getting it at 30 because I can, but there's rarely a time when I get up to a fight and don't have Fire Ball and Breath ready. Only reason I'm getting it is because it saves me some slots on Build Up (Yeah, I took Electricity because I thought Thunder Strike was ranged, oh how disappointed I was at level 28, made me quit Zim for like 10 days. It's strong, yes, but I thought it would be another ranged AoE... I have high hopes for Shocking Grasp). So yeah.