Usually, putting them up on Ebay is the way most people sell cards.
My personal opinion would be to purchase a price guide of some sort (not sure if Beckett still lists those cards) and sort through them to see what exactly you have. Might be a very nice collection there. Hard to say without knowing much about them.
If you just want to get rid of them for whatever you can get, then I've got a couple of questions.
What kind of condition are they in? Just like new, or worn on the edges some?
Is it closer to 2,000 or 3,000?
How much are you looking to get?
Yes doctor, I am sick.
Sick of those who are spineless.
Sick of those who feel self-entitled.
Sick of those who are hypocrites.
Yes doctor, an army is forming.
Yes doctor, there will be a war.
Yes doctor, there will be blood.....