Charles Mingus - Passions Of A Man: The Complete Atlantic Recording
ImportCDs is selling this on eBay for $22.33 with free shipping, lists 5 available copies. Used copies occasionally pop up for a lower price, but this seems like a pretty good deal for a new set. They have it listed on their website for $23.99 plus $2.99 shipping.
Edit: I guess a few Amazon sellers have it for a similar price, too.