A tip: When selling your gear through CL or any other such source, choose to meet somewhere public. I personally choose Starbucks and insist they come in to meet once they arrive because there is security video feed for authorities in case someone chooses to do something crazy like make a run for it once they've inspected your gear. You have to be covered when you're selling a body or an L lens etc.
Good advice. Craigslist is full of bargain hunters (like me . I've done well buying and selling on craigslist, but some things take longer than others. Unless you're dumping, you may need to wait a month or more (assuming you are in or close to a major metro area - rural could be even harder and force you to a national market). Took me almost 2 months to get someone who actually followed through to sell a 50mm 1.4.
Agreed on a phone number... also gives you a little more of a "solid contact" in case someone is trying to scam you. There are some things I only post a phone number for, no email - definitely filters out the tire kickers.