I might throw down a couple bucks for some of these Sony Beautiful Ballads compilations. Like a lot of compilations, there's some stuff that's missing -- I mean, to fit all the good Isley Bros. on one CD? Impossible. But they're pretty cheap, and they've got some smoooth jams on 'em.
http://www.sonymusicstore.com/store/catalo...amp;x=0&y=0