It might be worth you time to audition a pair of Dynaudios.
I've owend the NHT 3.3, and Goldi, and still own two KAV-250a amps and a KAV-250a/3. The 3.3 would probably be too "bright" on the top end, especially with a Krell. The Goldi would be good though. It's top end is better (not so bright), and while the Goldi's bass is very good, it is not the absolute "tightest", but the Krell should control the bass quite nicely. Mirage and AR are both a step down in performance. The B & W's aren't bad though, but don't have as good overall real world performance as the Goldi. They do some things very well, but I think are not as ultimately satisfying as the Gold1.
I must disagree with the statements above about the B&W's. First, the B&W's are the most expensive speakers on your list. I've owned 802N's and currently own 805N's. In my experience with B&W's, they require good upstream electronics, a lot of power (which you have), and exact placement. I was just shopping around for a new pair of speakers (I got the bug) and listened to about a dozen different different brands and when the dust settled I ordered a pair of 805N signitures. My regular 805N's will be up for sale shortly.
P.s - Last night I had some relatives over and we were watching CSI on the H/T rig in stereo. My brother-inlaw leaned over during a commercial and said "This is in surround sound, I can here things coming from behind me". I smiling and repleid "No, it's called imaging and sounstage", and then I gave him the short lecture on imaging.