Thanks for all your responses! Zu folks did suggest the Almarro, the Melody or used Dynaco ST-70s. I'll be auditioning the Melody and the Line Magnetic 211iA. With my limited knowledge of tubes, I'm a bit wary of buying 'used' gear or tinker with kits (a la Bottlehead etc.) and prefer equipment that I can get some kind of service on if I ever needed it. And yes, based off what I've read so far, the Atma-Sphere OTL amps seem to be fantastic; unfortunately they're just not in my (current) budget.