Don - you don't mention what Expansion Packs you have. University and FreeTime expansion packs add more exercise equipment.
Base GameExerto Multipress 5000
Exerto Punching Bag (reward object)
Fearless Flyin' 4000 Treadmill
University EPExerto Butterfly Machine
Exerto Free Press Machine
Exerto Leg Extension Machine
Nightlife EPElectroDance Shpere
FreeTime EPExerto Super Exercise Bike
Starting with Pets EP, Frillen's custom collections files that allowed you to place many items previously locked out in build-mode on community lots stopped working, but if you do not have Pets EP or later you can locate Frillen's collections files on MTS2:
229 ingame Maxis objects in collection files - similar collections are available for reward objects:
Twojeffs' Buyable Aspiration/Career Reward Collections at InTEENimater
Open For Business expansion pack changes the way the catalogue operates in build-mode for community lots, making most game content available for placement; to a degree, this rendered the custom collection files obsolete, but many items that appear in build/buy mode for residential lots may not appear in build/buy mode for community lots.