I'd suggest that, if you can, find a dealer that carries the Triad speakers and go audition some top-flight recievers or separates there. What you're looking for in terms of connectivity, ergonomics, looks, and sound may be vastly different from someone on these forums. The best way is to try before you buy.
I personally have experience with B&K's stereo amps, and it's great stuff. It tends to sound a little "warm". I know there's someone on these forums (forgot who, sorry) who ended up buying a B&K reciever and loves it to death.
Honestly though, when it comes to the price range you're looking at, it's pretty hard to go wrong. Yamaha, Denon, B&K, Rotel, ATI, Parasound, etc. all make great stuff in your budget. It's always great to be able to afford the really nice gear. As far as I'm concerned, you're in the sweet spot. You have enough money to get a top-end reciever and some great speakers that will put you above the mid-fi crowd, but you're still in the sensible budget before you start laying out $25k for a pair of speakers.