Semi,
I have to second TVAD on the CI Audio and NuForce "new technology" amps. I purchased both as a backup to my Antique Sound Labs 1009 tube monoblocks. I've since sold the ASLs.
The CI Audio amps are based on the Hypex UCD chip which is widely available, and Dusty at Channel Islands has a long track record of providing high quality, reliable products at a fair price.
The NuForces are based on proprietary technology, and may be a little further out on the "risk/reward" curve for you. That said the NuForce folks have a great product on their hands and continue to refine their amps based on real customer feedback; imagine that!
My suggestion is purchase both, try them in your system, and return one or both at the end of 30 days.
Best of luck in your search!