I do not like when no one replies to Q's so I will help you out.
All the amps you have listed are good.You do not need to sacrifice hard earned cash to get good sound and the Music Fidelity Mono's I think are on the expensive side.
Axiom has pretty effiecient speakers ,so I do not think you need worry about power output. A Clean 50 watt per channel Amp should be sufficient.If you can find a Class A amp that is the best!
I have had NAD equiptment and I found I favor Rotel over them and if you really want to save on it I bet there are enough used Rotel Amps around to be happy with to save a bunch!
Creek is really good equiptment also.
I like to find great used Amps and pre-amps that are almost ridiculously low priced compared to buying new.The one place you do want new is in Tape Decks because of the Heads wearing and speakers because of the Drivers can become defective after a long time.More moving parts the less likely the product's wear and tear!
Hope that helps!
