Amp for Gallo Ref 3.1 and Modwright swl 9.0se?

OK - I've narrowed my option to the amps below. Any advice, pro's, cons, weaknesses etc...?

Wyred 4 Sound st-500
McCormack DNA-250
Channel Island D-200

I run a Butler TBD2250 tube/SS hybrid. Runs cool all day and plenty of power. See this review of the Butler used with the Gallos. http://www.6moons.com/audioreviews/butler/2250_3.html

Steel

The Butler TBD2250 seems to be a great pairing. Does anyone know how often these are available used?
There is a 5 channel Butler TBD5150 available. Does anyone know if this would work in 2 channel, and if so, how it would compare to the TBD2250?

Anthony Gallo develops all of his speakers, specifically Ref 3.1 using Spectron Audio amplifiers. As far as I know they will present them at CES 2010 next January.

Its all for the good reason: heavenly combination.

Best of Luck
Rafael

I run a Son of Ampzilla 2000 with my Modwright 9.0SE (Signature Truth). IMO, it's a superb amp. You might be able to find a used one for $1500, or so.

Of the three you've listed I'd probably lean toward the DNA, as I prefer the sonics of conventional amps. I'd highly recommend looking at the Modwright Signature Truth mods. They are a significant improvement over the base SE.