Welcome aboard!
I strongly suggest you take quality pictures and post them in the value section and find out what they are worth BEFORE you start selling!
Also dont let ANYONE come in and pick and choose ANY choice pieces!
Do ALL your homework BEFORE you sell anything...
There are value guides, ebay, auction results from matthews, live auctions etc etc...
Take advantage of the FREE value forum and the FREE selling forum!!!
Be leary about sending pictures to lots of people you dont know and Keep an eye on the signs as depending what you have, they could be extremely valuable!
Good Luck...