You can go over to Jeepforum.com and read reviews of Pro Comp. I know from posts, that the springs in general people like but the shock are very unliked. They are very hard.
To run 33's you only need 3" of lift. You can get a 2 - 2.5" lift and a 1" body lift a lot cheaper (installation is very easy yourself with basic tools) Low cost Rough Contry has a 2.5 that a lot of people use. If you want better look at BDS or another step up is Old Man Emu.
2003 TJ, 33" BFG AT, 2" BL, 2" BDS spring lift, Truck Lite headlights, Homemade sunrider top.