The $120 sounds like a lot of buc, but I'll tell you right now, once you've utilized the info in the manuals a few times, they pay for themselves in the long run. This is also contingent on how long you plan to keep the car, your technical/mechanical abilities and so forth. Personally, I think they're worth the money.
Welcome to Bonneville Club!

Yeah I was thinking about it last night and its probably worth the money. Its 3000 pages and if it tells me how to do absolutely everything to my Bonneville, its definately worth it. I'll probably order it today. Thanks for the links again.

I have one, and it'* the only way to troubleshoot computer codes and also electrical problems.