<font color=blue> I don't know about body lifts... maybe just Energy. Just NOT Pro-comp!
RE: 2.5" lift... you're looking to go inexpensive: Probably Rancho or Big Dick Suspension (BDS)... BDS gives a GREAT warranty, and a great price... I don't know about it's ride. I have a Warn/Black Diamond 3.5", and its great, but I had to do extensive mods... the total kit, with new shackles/brake lines/pitman arm/shims/t-case lowering was 1500+, plus some new tools...
or even http://www.thinkjeep.com
(I think this is the right address for Leon Rosser) or http://www.mountainoffroad.com
Any other ideas out there? Old Man Emu is the best, but also the most expensive...
(oh yeah)... to start cheap, start with the 1" body lift... don't go more than 1" though!
I6, 3.5" Black Diamond, MORE, & more