Bumping an older thread, but I figured I'd chime in. I say start with a few simple things like Husky floor liners (if you aren't removing the carpet), or some nice seat covers.
I think most people throw on a two inch spacer lift, then get some 31s. Wait a year, then buy a 4 inch lift and 33s. You'll save money if you figure out where you want your Jeep to end up and work towards that (I didn't....)