I can't say enough good things about Junkyard Jam Band by David Erik Nelson
I've been on an electronics kick lately. I got this book from the Humble Bundle and I think I'm going to pick up his first book:
I found the wooden enclosure at Hobby Lobby on sale and after some drilling I was almost ready. My wood working skills and tools aren't good enough to modify the box exactly how I would like, but it got the job done albeit more rough than I would have liked.
When I was making the speaker hole I scuffed up the face. The side wall of the box was thicker than the 1/4 jack required so I had to drill part way in. I used one size large than I could have. It doesn't look as good that way, but it makes it easier to assemble and disassemble.
I went ahead and added header pins and dupont connectors for the speaker, LED, and powerswitch and 1/4 jack so I could swap out the amp circuit and chain some effects inside.
I also soldered a MIDI in port to header pins which I'll use in a future project.