you have torsion bars up front, pretty common (or was 10 years ago) suspensino design. Alot of the GM Trucks, 100 Series Land Cruisers use this design. Basically its a metal rod that is used to hold the front end up. When it is locked into the mounts you impart twist (torsion) on it which raises it up. The front end is locked into the A arms, so the more the bar is twist, the more they are lifted, and it lifts the front of the vehicle. If you get down and look under your vehicle right at the front doors, you should see a metal bar running from a cross member up to the A arm, this is the torsion bar, there will be one on each side.
As far as shocks, I have the Bilsetin HD shocks (good for stock up to 2-3" of lift) They have been really great the last year I have had them and they arent expensive. You will notice a big difference compared to the procomps. There are install pics in my build thread.
The only caveat is that you will have to remove the rear sway bar in the back, because the shock bodies are larger. It is advisable to remove it anyways for better articulation in the back. Mine has been gone for a year and I didnt notice a difference at all, just a few bolts to remove.