welcome to the addiction
JEEP = just empty every pocket
What you do to it will depend on what you are going to use it for.
I got my wifey addicted to fishing.....so I get to go rock crawling to get to the high lakes here.
I would suggest getting a Rubicon....after market they are not mush more and sometimes cheaper than the regular jeeps. But, you get so much more with the Rubi........4.0 rocktrac gear driven vs chain driven xfer case, Dana 44 axels, lockers.
TJ's 99 - 06 get the 4.0 I6cyl these engines are almost bomb proof and have great low end tourqe. Stay away from the 4cyl.
JK's 07 - 11 these have the v6 3.8 minivan motor in them, very low in power
JK's 12 - these have the 3.6 pentstar motor.....lots of power!!!!! these also come in a 4 door