Integrated advice for B&W 705's

Thanks for your replies! 
I did get a change to demo them prior to purchase but probably not long enough and with a wide enough range of music.  There are aspects of them I really like...very clear, nice midrange and better bass then my previous setup.  Also harsh maybe isn't the best description, perhaps a little too bright sounding is more accurate? Sorry still new too the whole audiophile scene and descriptions.    

I've have looked at the Rogue products and they look like they may be a good fit with the tube pre-amp.  I've also been looking at the ARCAM SA20 and Musical Fidelity M2Si based on pricing and seems like some positive reviews online, although I'm learning that getting thing paired well is very important and don't work well in all systems.  

Thanks for all your advice! 
You've definitely all given me a lot to consider and I suppose that all part of the fun & frustration of getting into this hobby.  I think looking into some room treatments might be a good first and lower cost step than a new amp & also see if I can find a local dealer willing do some demo's and at least it's a possibility to maybe find a good pairing.  Don't think I'm ready to part with the speakers as a first step.  I'm sure some tuning of the whole setup is still possible!