If I were considering the Arcam, or any receiver for that matter, I'd not be spending lots on speakers...specifically one's that that want more power. You'd also drive them as "small", as the receiver is limited on power output, not to mention passive speakers lack of efficiency mostly.
I would consider saving a bundle, and trying some smaller monitors like the Infinity Beta series stuff. I use them in my small home theater room with some Acurus and Krell gear, and am very very thrilled with the sound I'm getting!
The Beta series uses the same drivers as the. MTS series, is as detailed as teh B&W stuff for WAY MORE money.
I use the Beta 10's in a very small room setting, and they're superb on 24" stands. The B&W 805N's I've sold over the years, as well as Thiels, Sonus Faber, Dunlavy, Wilson, you name it! For cheap, you'll not better these little speakers. Thought it might be a consideration to save some money.
These speakers are a tad foreward in pressntation, but works perfectly with HT, for more involvment and "jump factor/pressence"!
I guess what I'm basically promoting is a much more affrdable, yet audiophile grade sounding transparent speaker that will better make sense with a receiver based system!
My buddy used to use Nautilus 805's with a very good souneding Nakamichi AV10 receiver back when. It wasn't anyting special sounding alltogether, just ok.