Jeff,

I'm sure there's others out there, but check out this one from Royden Leather. We've got a few around the office from over the years and they've held up nicely.
http://www.roydenleather.com/store/stores_app/Browse_Item_Details.asp?Shopper_id=618961312442661 89&Store_id=132&page_id=23&Item_ID=23 5

Justin