RBH Sound may not be a big name but their Signature Series line is amazing and will sell itself in your demo room. Dealer margins are excellent. It's at least worth a phone call to Daren Egan, their VP of marketing and sales.
You'll also give those Canadians a place to go buy and demo speakers when we talk about RBH... lol.
Other than that, you might want to contact CablestoGo/Impact Acoustics (Joe Cornwall). Their RapidRun line is simply groundbreaking in terms of its field termination ability. No one else can terminate HDMI and DVI in the field, to wall plate or pigtail.
I also like NHT, Dali... don't know their margins though.