I'm in a big hurry to make a quick-paced Latin/Bebop piece. My samples are decent, though I don't have the greatest percussion chops. So I'm looking for some great "preproduced" material to play with, as opposed to making a custom drum track with MIDI. (That would be a nightmare for me!)
Can't speak highly enough of the guys at Loopmasters. REALLY sweet material. I do a gig about once a season where I write music for an Hispanic Theatre company, though I'm an Anglo. The loops really help out to get me going in the right direction. The Jazz World CD and Percussionism are my favorites. Downloadable from several companies.