David,
I recently purchased the Woodtech 25" dual drum sander. This was a replacement for a Performax 22/44 single drum unit. There are a couple of things about this machine that you might want to know. First, it requires a 30 amp circuit. I have just enough electrical experience to be dangerous so this was not too big a problem. If you don't have the ability to wire it yourself, that is an additional cost involved. Second, the owners manual for this machine is probably the worst manual I have ever seen. Unless you are good and figuring things out for yourself, this might be a problem. I did have to adjust the trailing drum to be parallel with the leading drum as it came pretty mush out of line. Beyond all this, I am very satisfied with this machine and have found more and more uses for it. I was a little worried about having a 25" width limit but soon realized that I was would rarely ever need capacity wider than 25" and could work around it when I did. I don't find having to wrap the drums too much trouble and can do so in just a couple of minutes. Good luck on your search for a good sander. I like mine.
Rob Liles