- Lexan scissors - THE BEST for cutting ABS. They are difficult to find in stores, so I suggest Amazon. Get the set of two: one straight, one curved.
- Dremel - This came in really handy on my build. Cheaper than a hand drill too. Get one that comes with drill bits and a sanding drum. Great for all the small holes you'll need to drill, and the sanding wheel works really well for fine tuning the ears. (Unless you got an Anovos kit, they already did that for you..

)
- 18" metal ruler - Art/drafting supply stores will have them. Flexible ruler with a non-slip cork backing. Great for measuring your trim lines and as a guide while cutting with an x-acto.
- Get as many small plastic clamps and 'rare earth' magnets as you can!

At least a dozen or more of each.