What's the easiest/fastest way to move files from one Mac to another?

I'd like to copy my Music library from my Mini to my Macbook. I don't have a firewire cable, though I can go buy one if needed. Is there anyway to directly connect the computers via airport, or just plugging an Ethernet cable into the 2 of them? The computers are on a wireless network, using a Netgear router.

I'm just looking for a quick and easy way to transfer data. Thanks in advance.

-Nick

Plugging in the Ethernet cable would be the fastest way to transfer files. Just hook them up and the computers should be visible to each other under the Network tab in Finder.