Heh, a canning thread with mentors to boot! This forum just keeps giving. I got interested in canning this summer when I grabbed a mix of ~50 bale-top / screw-top canning jars at the town dump. Quickly found out the bale-tops are best sold off to crafters & hobbyists although I kept a few to degrease parts in. Have not found a cheap pressure-canner yet but hopefully by spring I will have one at the right price. That's it for random thoughts.
One tip to pass along on jars: We buy Classico pasta sauce. (At Target it's on sale @ 2 for $4.) I'd never noticed it prior to taking an interest in canning, but the Classico 24 oz. size is an Atlas mason jar. They are squared-off and the mouth accepts Ball lids & caps. Put the jar in hot water for 5 minutes and the label slides right off. I poked around online and they are very popular with canners. The glass is thick and many commented on the convenience of the square sides for maxing out shelves. A nice bonus and the tomato/basil sauce is pretty good for jar sourced.