by trenttsd
Here's a list of every card in Revised, 4th Edition, Fallen Empires, Ice Age, Homelands, and Alliances (which seems to be the sets you have) with a value of $20 or more:http://goo.gl/QCLmC
If you have those cards, sell them individually. Otherwise, sell them as a lot. That's what I'd do.
If you want to mess with the parameters a bit, here's the tool I used: http://sales.starcitygames.com//spoiler/spoiler.php