I <3 NY deli sells em. I dunno if that place is still in biz though, the one in the U district closed a couple years ago. It was a shame, they had the best deli sammiches in town, and the best Rachel I've had in my entire life.
Think I've listened to "Back That Azz Up" for about 30 minutes straight now. I'm still in awe at how great that song is every single time I listen to it.