First thing I bought was hood struts. But the first I guess you would call it "big thing" would be a BB and a set of Moab takeoffs from a wrangler. And a bunch of krylon fusion satin black. There is a lot you can do to your WJ or any car for that matter on a budget, just find out what you want your WJ for, and go from there.
99 4.0 Laredo Selectrac, 6.5" IRO long arms front and rear, 35" KM2, 17" Moab JK wheels,IRO transfer case skid, Clayton D44A truss, 4:56 gears and LSD axle swap.