The screws were left in. I've read that they are dangerous to use, but I didn't have problems. I was sure to pre-drill every stinking hole, though.

One reason I used the screws is I only have 3 bar clamps.
Royce, the amp is a Parts Express 250W 300-794 (the one without bass boost). I ordered it, the tempest, and the port kits from Acoustic Visions (whom I recommend highly).
Construction of the box took longer than the average (I'm guessing) becuase I needed to make it appealing enough to sit in the living room. I wish the stain turned out a bit better, but it'll do.
- JamesT