My favorite not-quite-HP system is the one in Star Wars Saga Edition.
I've been wondering for a LONG time now how that could be house-ruled into 3.5e or 4e.
3.5e had a few generally useless conditions (like Dazzled), so those could be lumped into a general condition track pretty easily.
4e's conditions are pared down to the point that I don't think many candidates for consolidation remain... on the other hand, it has a boatload of "-2 to you, save ends" not-quite-conditions which could easily become boxes in a generic condition track.
Actually, maybe a bunch of 3.5e de-buffs could be handled similarly.
"Drag, drag, drag", -- N