Those speakers tend to be a bit divisive... some love them, whilst others find that they send them to sleep. Personally I would audition them alongside some alternatives, such as similarly priced kit from Mordaunt Short, Acoustic Energy (discounts available) and my true love Epos. You might find that the B&Ws are unbeatable for your tastes however.
Isn't the RA05 the same amp as the much cheaper RA04 but with a remote control, or am I confused? That always made it feel like slightly poor value to me.
Edit: People have also been making quite a lot of noise about the Dali Lektor 2...