I want to thank everyone for their advice on how to make the decision. Great suggestions and I appreciate your sharing your reasoning processes. If I understood my doctor correctly, she thinks Remicade is the only anti-TNF that directly works on the AS disease process (although I may have misunderstood -- she may have been using Remicade instead of the generic term "anti-TNF")
By the way, I don't mean to be complaining about my doctor -- I think she's good, I just have to get used to how she communicates - I'm learning it takes a few visits with specialists before you learn their communication style and language use, etc.

It seems that, minimally, if she recommends this course of action, I should seek a second opinion, though. She did not mention that there were bad side effects. It's nice to have patients' perspectives.

Thank you all again -- your comments are very helpful.