I like the older SS Peavey amps like the Studio Pro 40 or 50. Many of these can be found in decent condition for less than $100. I found a mid-eighties 40 in a pawn shop a couple of years ago and gave $48 for it. I cleaned it up and replaced the old original square magnet speaker with an 8 ohm Eminence Cannabis Rex and I've been playing it nearly every day since. Nothing fancy, but excellent cleans, relatively light weight (about 24 pounds) and easy to pack around. If I need dirt, I've got pedals that the amp takes just fine.