Good place to find collectible card value?

[mlc82]

Was just cleaning out my closet/attic searching for stuff I don't use to sell off on ebay, and came across a box of collectible cards from when I was a kid. I've got all kinds, WWF Wrestling cards, movies and video game cards, and many baseball/football/basketball cards that people gave me even though I never cared a bit about sports. I figure some of these could be rare, and with the sports stuff I could potentially have something very worthwhile and would have no idea, just wondering if anyone knows of a good way to quickly learn if these could be valuable without having to just list them all on the net, which could take quite awhile...