need advice on 3" lift decision

I want to go with 3" lift to fit 33" tires. I want to do moderate off roading and not affect on road handling. I've done a little research and will probably go with Toytec's 5100 coilovers and aal's (or similar).

I'd like some advice and ideas from others that have done similar to their trucks. The main questions I have right now are:
- do I need to replace the UCA's
- will I need diff drop
- how much trimming will I need to do to avoid serious rubbing

I don't need a monster truck, but I don't want just spacers either.
Thanks!

My truck:
2008 AC TRD off-road
6-spd

 

You may or may not need new UCA's. I got them just in case. Some have been able to get pretty close to stock alignment specs without.