Sell it on ebay!!!!

Looks like you have collectibles of all major sports there, so what I would suggest you to do, is to get hold of a sports collectibles values magazine by the name of Tuff Stuff. The publication should be able to give you value estimates of your items before you sell any. But before that, you might want to sort your cards according to the season, manufacturer and card numbers for easier reference later. Sell the whole lot, and don’t let the dealers pick the best cards else you will have difficulties getting rid of the commons later.