Here's a thread discussing a very similar question.
http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1046669548&openfrom&1&4#1
I sound like a parrot, but a used Counterpoint SA-2000 is in your price range. While you surely could find something less risky in the reliability department, the SA-2000s are very nice sounding. Plus they have a SS output buffer, so matching them to SS amps is not an issue. Good luck
http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1046669548&openfrom&1&4#1
I sound like a parrot, but a used Counterpoint SA-2000 is in your price range. While you surely could find something less risky in the reliability department, the SA-2000s are very nice sounding. Plus they have a SS output buffer, so matching them to SS amps is not an issue. Good luck