Third any of the Naim amps, but you should seriously consider the Bada 222. It is incredibly good. There's one up for sale now for about $350 or so.
http://www.audiogon.com/cgi-bin/cls.pl?intatran&1258463950&/Bada-Dc-222-Hybrid-Silver-
http://www.audiogon.com/cgi-bin/cls.pl?intatran&1258463950&/Bada-Dc-222-Hybrid-Silver-