Howdy Ridley! Welcome officially to DP! When you get the chance, go
here and introduce yourself in the Introduce Yourself thread!
Now then, experience has shown that you get more $$$ for individual pieces than you would for a lot. However, it takes more time to list individual games than it does to post one big auction (It's a bit more pricey too, as you have a fee for each item rather than one fee for the entire lot.)
However, people are more willing to bid high on ONE item they need, rather than bidding low for a bunch of stuff they DON'T need, only in hopes of getting that one item. Also, big lots have opening bids that scare away most people, so there's a chance you may get NO bids.
So, my advice is to part it out. You'll get much more for your money. However, it'll take a bit more time to set them all up and your auction fees will be higher. Good luck, and Welcome!