I was typing this post when Mav was, so sorry if there's some duplication....
Here's some more info about having the OEMs rebuilt.

LittleBeast had Bruce do his:
http://vehicross.info/forums/showthr...ighlight=bruce

and so did VR4-Quest:
http://vehicross.info/forums/showthr...ighlight=bruce


SlowPro48 has had Bruce rebuild many shocks:
http://vehicross.info/forums/showthr...s+shocks+bruce


Some discussion about the OEMs and the Rancho 9000XLs:
http://vehicross.info/forums/showthr...ighlight=bruce

mbeach's impressions of about 4 different shocks, including firmness of each:
http://www.vehicross.info/forums/sho...62&postcount=6