01 Sierra 4.8

Here's my 01 GMC Sierra. I bought this from a guy in NC a couple months ago. I want to make some changes but dont know where to start. Any suggestions?

It has a 6" Fabtech lift & Shocks
3" Body lift
K & N Air intake
Hypertech programmer
Flowmaster duals
22" KMC Rockstar wheels with 325 50 22 Nitto All Terrains
Billet Grille
Rocksford Fostgate amp and 2 8" subs

Soon to come
Headers, Cam, & Projector headlights

http://i57.photobucket.com/albums/g2...s/DSC04065.jpg
http://i57.photobucket.com/albums/g2...s/DSC04124.jpg
http://i57.photobucket.com/albums/g2...s/DSC04144.jpg
http://i57.photobucket.com/albums/g2...s/DSC04137.jpg