Lots of folks have a good general selection. Tru Grit and Pops probably have the best, but folks like Sheffield and other supplies usually have a nice selcetion at the shows. I have used both Norton and Klingspor ziconia belts and Norton Blaze. I like the Klingspors in 36 and 40 and both Nortons in the 50-100 range. The Klingspors seem to last a little longer than the Norton zirconias. In my opinion, the Blaze belts do not last as long as the company claims, but they are still darn good belts and you can use the next smaller grit for hogging when compared to zirconia, so less of a "sandstorm" effect......but they are VERY pricey. For your 120 and up, either use the yellow Klingspors or the grey Hermes belts. The cheap red Hermes AO belts are pretty flimsy, but their more expensive stuff is pretty good and reasonablty priced. Tru Grit was out of Klingspor 120's and recommended the Hermes and I have been pretty plased with them. The cheap Hermes brown AO 36's are good for hogging wood, but I don't like using them on metal. I had one split and give me a fat lip. Shop around a bit. I bought some 120 and 220 Klingspors a while back from wither Opos or Sheffield and, for some reason, they seemed to "bump" less than others I have bought since them. I wish I had bought a ton of them but who knew? Bumping is not so much of an issue on the large grit belts with heavy backing unless you press REAL hard or are using a belt that is pretty worn.