Thanks for the responses--they pretty much echo what I've heard from friends that have knees replaced.
Yes rehab is important. My PLAN is to go above what is demanded, but I will have to see if I can actually do that. My history is that I heal fast. I hope that holds true.

A friend who had both done at the same time, recovered well, and was actually in his garage a week after surgery. he said, the initial pain was so sever, he doubted that he could force himself to do a second one if he had done one at a time.
I am looking forward to it. I asked my surgeon about why there are still unsuccessful knee replacements, and thats when he said you avoid that by choosing a surgeon who does many, many replacements every year; not just a couple.

More experiences are great, please keep posting.
I will post my progress.

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1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags