I had to do the Esbern voice fix as well, though I haven't actually done that part of the quest line yet.

The only cheat other than terrain exploitation and such that I've done is getting my speech to 100, and I did it mainly so I could invest in shops and then use them like a fence to sell stolen goods. Thing is, on my mage instead of stealing everything, I kill everything, and take things that I can sell to a normal vendor. I'm making just as much if not more money than I did on my thief, and having fun killing shit in the process. The thief character isn't incredibly fun to play anymore because the play style is so tedious and having speech at 100 is kind of too good.