You don't need a table saw to get started. Since my "shop" is 1/2 of the garage, I have very little room to work. I started with a saw guide like this:
For routers, I have a few. I use a Craftsman fixed base for my little router table for flush trimming. I use a variable speed plunge router for round overs because my big 1" bit needs to be slowed down. Finally I use a Black and Decker along with a Jasper Jig and a 1/4" spiral up-cut bit for cutting my speaker holes. The Jasper Jig is the best money I have spent on box building. It is dead on for making driver holes the correct size. I can also use it for flush mounting mids and tweeters.
Another poster mentioned other tools. Sawzall - It used for destruction and not construction. I've used it once when flush mounting a plate amp into a cylinder sub like this - SVSound - Cylinder Subwoofers
. Drill - rarely used. I sure don't use it when building a good box. I use Tightbond II only. That way I can round-over the edges of the box without the bit hitting a screw.
I'll help when I can but my weekends are usually taken up with family. If you want to work something out let me know. My wife may be spending time with her sister tomorrow afternoon but I can't guarantee that or even know what time. If that is the case, I'll be in the "shop" finishing up these - http://www.speakerbuilder.net/web_fi...D3/dayton3.htm