Many of the other suggestions have an edge over the PrimaLuna in particular. If VAC or VTL do an integrated I would definitely add them to the auditioning list.
PrimaLuna EVO 400 v Cary SLI-100
I've never owned anything other than solid state but I am increasingly intrigued with tubes. Thinking of "investing" $5K or so in an all-tube integrated to (at least initially) drive my Klipsch Heresys. Any thoughts on these two choices? Is there another choice in this range?