I will update my JC Hemi V8 in this order. I don't offroad, but I snowboard during the Winter so my mods will be in this order.
Stage 1: I just installed a full Cat-Back exhaust system, Magnaflow. I think the stock exhaust is way too quiet. It sounds so much better and mean with an aftermarket exhaust Plus I wanted to piss off all the Prius/Hybrid owners out there and rub it in there face that I own a gas guzzler.
Stage 2: Air Intake system. I will probably go with AEM because it is a dry filter and I like the aluminum pipe. This upgrade with the exhaust system should help out with the weekend trips to Tahoe.
Stage 3: 2'' Lift kit when I need new tires. Mostly for looks. I hate driving next to new a Tacoma TRD that has a higher clearance than the JC. Oh and I want the JC to look different from all the other 2007 and 2008 to be JC owners. I know people are going to catch on to the JC. God forbid it being as popular as the Explorers, MDX, and 4runners.

I've only seen 2 JC's in San Francisco.