I'm planning to pickup a few more of the 15 Micron belts, plus several different grades of the Blue Zirconia and Aluminum Oxide, and probably two or three of the leather belts. I figure I'll use one leather belt for black compound and another one for the green, with a spare in case one of them breaks.

I bought a couple cheap Cold Steel Machetes to practice with on the belt sander when it shows up. I even have a couple old lawnmower blades to play with, so I'm not hurting for steel to get my experience on.