Your best value and bet will be the 125 watt M-125 monobloc amps from tubes4hifi. You can buy them assembled and ready to play for about $2800 plus shipping. If you like to get your hands dirty, they'll also sell them to you as a kit for about $1800, minus tubes.
http://www.tubes4hifi.com/bob.htm#M125
http://www.tubes4hifi.com/bob.htm#M125