What are the best hi-NRG aerobics disco compilations ever?

A very important question, obviously, for those of you striving to attain thin thighs in 30 days! *Music For a Hot Body* (TSR, 1984), would seem to be the obvious standard bearer of the genre, but last week Metal Mike Saunders sent me a CD of *Superstep Powermix !* (Power Productions, sometime in the early to mid '90s I guess), and I have to admit, it's pretty good -- from the two-song Warm Up to the 9-song Workout to the one-song Cooldown on BOTH of its discs! And I also am liking the *Jammin Cardio Fit Mix: Dynamix 3* and *Dynamix 4* cassettes (both Dynamix Inc., 1992) I picked up in a thrift store on the Baltimore/DC border last month. I'm sure there are others I don't even know about and probably should, so go ahead, shoot your shot!