What are you looking for? I'm listening to Larry Graham and Graham Central Station which has tons of butt shaking bass. Marvin Gaye's What's Going On features the incredible James Jamerson and Parliament's Mothership Connection has Mr. Bootsy Collins (say no mo').
On the rock side, I've felt for a long time that the Real Me by the Who sets the stadard for rock bass performances (RIP Ox). I'm not a big Chili Peppers fan, but Flea can tear it up.
Chris Squire (Yes) and Geddy Lee (Rush) are also incredible bass players, though, again not sure what you're looking for.
I guess that's the big thing. Are you looking for just generally great bass performances, bass solos, or some real strong, nas-T, funk?