Bryland,
I've owned a Tubes4HiFi VTA ST-120 amplifier for 5 years, and loved every second of it. It ran my Thiel CS2.3 floorstanders for most of it's life, only being moved when I purchased my Thiel CS 3.6 speakers....which I've recently sold as well.
The Amp can be purchased as a kit with no tubes for $1,180, or an assembled unit for $1,600....I assembled my own, and it was easy (and not terribly time consuming).....directions were clear and precise. The driver tubes are 3 12AU7 (or equivalents), 6550 or KT88/KT120/KT150 output tubes, and a 5U4XX rectifier. Power with the 6550s is 60 high current WPC and the KT series runs up from there, capping out at 80 high current WPC?
I'm using NOS RCA "Clear Top" 12AU7 driver tubes, an NOS Phillips 5R4GY rectifier (swap in a Mullard GZ37 rectifier at times), and Tung Sol KT120 ouput tubes....total tube cost about $500.....this unit is a tube rollers dream if that is of any interest to you.
If you are up for a project and handy with a soldering iron, it's a fun project with the final product being a killer amplifier with very high end tubes for about $1,700