I have a Nesco dehydrator it is pretty good, I have had no problems with it.
I am about to get a Victorio for sauce. Model 250 it's acutally on sale at Amazon right now for $47 normally about $70. There are a few people on my Tomato froum that swear by this. I actually went out and bought an inferior model recently that I took back today.
The Vicotrio is on the way. Another great sauce maker is the Fabio Leonardi they are Italian and much more expensive.
Good luck. Take a friends advice don't settle for second best. Do it right I found that out this weekend.