Carmen Electra's Ultimate Workout Mix, Vol.

Music Presents: Randy Couture's Workout Mix, Vol.

According to the Nike+iPod Sync page on Apple's website, the iTunes Music Store will "soon" be stocking up on Continuous Workout Mixes:

Personally, I'm most interested in the Continuous Workout Mixes and the Sport iMixes.

A Tribute to Lady GaGa & Ke$ha Workout Mix (60 Minute Non-Stop Workout Mix (128 BPM))

Best Of 2010 Workout Mix (60 Minute Non-Stop Workout Mix (130 BPM))

Essential Workout Mix: Disco Remixed, Vol.

Essential Workout Mix: Non-Stop House, Vol.

G-Rated 90's Workout Mix (Aerobics, Cardio & Fitness Workout)

Essential Workout Mix: Dance Hits!