I'm sure there are more but from my experiences the Budda Superdrive 30 and Orange AD30HTC are 2 fantastic sounding and feeling amps that can be purchased used for under $1000. I have an SD30 pre peavey and was actually selling my AD30, but I pulled it. Between the 2 they cover nice cleans, blues, raunchy rock and chewy thick overdrive. I'm not a pro by any means (not even good), but I have a good ear for tone and have had and currently have a number of very sweet boutique amps. These 2 hang with any of them for what they do. Anyone also dig either of these or know of other inexpensive mass produced amps that you feel the same way about?