which tube mono blocks?


I run electrostatics that are 4Ohm @ 86dB. I currently use 200w Class A SS mono's. Which tube amps should I get to try?
jtwrace
Audio Valve challenger monos class A, xlr rca,easy auto bias can run kt88, el34, 6550, shows if tubes need replacing, stable into low ohms, great for stats.
How about the Rogue Zeus monoblocks @ 225 watts and reasonably priced used - at least compared to some of the other options referenced.
thanks for all the posts and keep them coming. I will be keeping the speakers so that's no an option.

PLAY NICE!!!

Thanks-
Post removed 
11-20-08: Atmasphere
Darkmoebius, just for the record, I stated that about **all** amplifiers, tube *or* transistor!
Thanks for setting the record straight, I had a feeling I was getting something wrong.