i haven't tried them, but some of the jcm800's, afaik, were two channel.
I really can't advise- but i suggest you take a look at an engl savage if you can, if you have the cash- it does the modern thing and the marshall-y thing (at least my savage se does)- but of course, if you only want the marshall-y tone, a marshall would be better.
A framus cobra might be worth a look too, from what i hear, but i haven't tried it.