i have the OEM Blackberry horizontal leather case. it has plasticized grooves to protect the trackball, sleeper magnet, card slot for credit cards, and a removable lanyard. there's a hole in the bottom i can stick my fingers into to push the berry out, but i usually just leave it in the case and use my bt headset when out and about, and rarely use the case when i'm at home or in a fixed location.

it doesnt have a belt clip, though.

i love the case though... i never wear my cellphones, so the lack of a belt clip was a plus for me in reducing its profile. the card slot is great for storing all of the coffee club cards i may need for wifi access at hotspots... starbucks, borders, and barnes & noble to name a few.

my only wish is that it had a leather "tube" along the top or bottom to fit the Blackberry/Plantronics 655+ headset and cradle... i may take it to a leathersmith to have that incorporated into the case, though.