Finally!!! I just purchased some Aerial Acoustics 7T speakers! How do I power them???

A Theta Dreadnaught or enterprise monos would be my suggestion(look at the bruiser on avsforum).. .. I am a big fan of Theta/Aerial

As are others(look on Avsforum)

On a Secondary note some of the same design team built the Classe Sigma amps(I have a Sigma amp5 on my center. surrounds), and There are closeouts on the amp2 / amp5

On the Budget side of things, the closeout sigma amp5s also by a similar design team would be perfect
Own Citadel 1.5s with Snell Xa90PS

IF You do decide to go either Theta Route, there is a LONG!!!!!! break in time, My 1.5s didn't sound their best until the +500 hour mark.(I was skeptical myself )... but that is the case!.. 

Those are some beautiful speakers, congrats.

Am I understanding you LOVE your home theater, and do not have rear surrounds?

Perhaps you have heard poorly set up surrounds, many people keep them too loud, and on for programs that should be set for just front stereo. Generally you should not be aware of them, until you turn them off and everything collapses to the front. Then, specific surround sounds by director’s intent give direction as well as immersion.

Many times, i.e. the Voice, X Factor, Concerts that originate 2 channel, I need to force my receiver to go back to direct or 2 channel sound, so much better. That is why you want full range fronts like yours, and placed for center dialog imaging, the center channel will not be used in those cases.

However, for many movies, content recorded in surround, music dvds ... I want the surround, and for the Jurassic Park Dinosaur Stomp, I want my powered sub-woofer.

I suggest you owe it to your self to try rear surrounds. They do not need to be special, nor produce much bass. Mine are small, between the back of the sofa and nearby wall, on their backs, facing up, using the space between ’like a horn’ is some sense, not conventional, but they work well and I wouldn’t be without them.

I actually owned a B&K 7250 back in the day.  It's an excellent amp with lots of current and slam.  However, it is voiced very warm and doesn't have the high frequency clarity/transparency that other amps do.  Similar amps could be something like Parasound or Rotel, but B&K still has a warmer sound than both of these.  Marantz is also in this category.

The latest Krell amps (Chorus / Duo / XD) have a very smoothed over and lush sound to them.  They are in a different sound category.  Levinson is also in this category.

Neither of these amplifiers are 100% neutral / transparent / uncolored, in my opinion.  Ultimately, it really depends on what kind of sound you are looking for.  Both the B&K and Krell are excellent choices, but have completely different sounds.

My opinion would say that you want a transparent / uncolored amp for home theater.  For music, it really depends on personal preference, but some people like warmer for HT as well. 

The uncolored / neutral amp category would include things like Anthem, ATI, Bryston, Classe, maybe Plinius.