Thanks for the replies! Yes, I'm sure I'd get over the embarassment soon enough. But with the amount of time already spent riding the bike I'm also concerned with the time it'll take getting to and from the gym, etc. So I went looking for info on good videos to use at home. I found one that should be intense enough for a fit cyclist, pretty good buzz about it so far: Amy Bento's DVDs at
http://www.nrgfitness.net
A nicely rounded debut series. I'm going to give "Abs & Stretch" a try and will report back.
Regards,
Don