i think that the mesa duel is such a sick amp...im planing to get one myself one sometime in the next three months....another sick amp for any tone you would be looking for is the JCM 900 (which i dont think they make anymore)
but you can get one used off of ebay for a good price another good amp that ive played was a Hughes and kettner, it was prob the best sounding amp ive played in drop c