I picked up used AGX/GC's (325/250lb) and was wondering if there is anything I should replace while I'm in there, the guy I got em off of said I might want to replace my bushings? Should I try to get some energy suspension stuff, or new stock bushings, or my old bushings will do (40K miles)... also, do I need anything else while I install, here's a pic of basically what I have

http://www.seas.ucla.edu/~anthonyg/pics/SE-R/agx-gc.jpg

Is that everything I need to put em in, or am i missing some stupid small items that I need to pick up at the dealer or something (I only displayed one front and one rear, the other side is exactly the same)?

Thanks,
Anthony