Do you know of a good video game recorder that works for PS3, Gamecube, and PS2 that is relatively cheap?
I use a Happauge HD-PVR. Works fine and are used with Windows mainly but you can get programs that works on a Mac too.
But what is your question actually? Is it recording gear or programs? If it's not important to record in HD then a Blitzbox works fine to and it's much cheaper.
The Hauppauge HD-PVR is a great piece of kit and normally runs around $200. It's on sale right now on Amazon.
If that's too pricey then the Roxio Game Capture might be a better fit. It normally runs for $100 but is also discounted currently on Amazon.
I use the Roxio personally and it gets the job done. Here's a sample of what the end-product looks like: