Building second system around Harbeth P3 esr


I bought the P3's a couple of months ago. I should have some cash soon to go forward with this system. My thoughts are the Croft Phono Integrated. Please share your thoughts on not only the amp choice, but what this systems strengths might be. I just want to listen at low to moderate levels, and be engaged. I wish they were more efficient, which is why I'm thinking Croft, which has a tubed stage, and SS amp.

fjn04
Thanks- I was hoping 50 watts would be plenty, especially the way I plan on using this system. Does anyone know who the Croft US importer is? I want to get some recommendations for a well matched cartridge. So far, going only from what I've read.... 2M black: no romance (-: , Nagaoka: some romance.
Yogi- I called Jay (Bluebird) last week, and left a VM. No return call. I figured it was a fluke, called again, and left another VM. No return call. At that point, I figured he wasn't responsive because he was only the Canada, but not US distributor.
fjn04, Give Gene Rubin a call. I purchased Harbeth and Spendors from him. He sells Croft so that would be the guy to ask. Check out his site!
Here is another Croft dealer.  http://store.acousticsounds.com/index.cfm?get=results&searchtext=croft+acoustics

http://shop.generubinaudio.com/
Thanks all. I may give Gene a call, but will first seek out a closer dealer. 
With regard to a cartridge, I have some time to figure that out. I would like to avoid an SUT, and the extra cable that would be needed. So either an MM, or a High output MC.  I want to play to the strengths of the system. What I mean is a nice refined, fleshed out midrange.