I recently purchased a 2004 ZR2 Blazer and would like to know where to get the off-road goodies... bully bars... side nerf bars, etc.

 

Try Synergy Offroad.

And forget nerf bars for offroading unless you plain on staying in the mall parking lot. Same with bull bars unless you just want a place to mount lights. Think rock sliders and Warn Trans4mer is you really want to go offroad.