Hacking Video Game Consoles
I picked up a copy of Hacking Video Game Consoles last week. What a fantastic book. It's ridiculously cheap on Amazon, only $18.89 right now.
The author, Ben Heckendorn has long been a legend in these circles, and has a vibrant community orbiting around his hacks.
The book is VERY well written with a snarky but not condescending conversational style that is easy to read. He includes RadioShack Part Numbers for every part as well as an excellent primer on soldering.
This would make a great gift for any 20-something geek and an excellent father-son project for teens and tweens.
He's recently added a section on his site to buy the pre-cut machined plastic cases for your creations for very reasonable prices, IMHO. I'm totally stoked and am going to try to build one of these with the wife in the coming months. I think I'll make the PS1 portable first.