I have the 2000 SSEi and I have rack and pinion problems as well. I have power steering to the left 100% of the time, and to the right only 20% of the time.... Pretty hard to parallel park
I found this site and will probably order my replacement here...
PONTIAC Bonneville FWD Steering Rac 00-03 Supercharger Steeringrack.com
I also have the intermediate shaft "clicking" everyone complains about, but it'* only real bad in the colder weather. I've since moved to AZ...Problem solved!