The word around the forums is to use this as a guideline
Leveling Kit - 33 inch tires
4 inch Lift - 35 inch tires
6 inch Lift - 37 inch tires
I've seen pictures of all three setups and they are the most visually appealing combinations.
Myself i'm going with the 4 inch lift and 35's, can't wait to get it in.
As for tires, I'm going with the Toyo MT's. I've heard the opposite of the poster above me regarding wear and noise, but I believe both tires are manufactured by the same company. The are very comparable IMO. Toyo does have a rebate on right now as well.
Good luck, it's tough deciding all this. Ask lots of questions and post pictures when you're done!