[AzB]

Go with him to his bank. Have him write a counter check (or cash whatever check he has) and give you cash. Deposit in bank if you have an account, or have the bank transfer your cash deposit into your bank or write you a cashier's check.

I do this with any CL type sales over a couple hundred bucks. Added bonus, banks have all kinds of cameras and stuff in them.

It's safer for the buyer too as they don't have to carry cash and take the risk of you theoretically robbing them.