I'm using the same setup you were using with Bell.
I have a home made ladder mount dish and a tripod for when trees are in the way. I does take some practice to find 91 and 82 but I can usually be up and running in about 15 min.
You should be able to pick up Bell Nimiq 91 in most of the States as far south as Florida and as far west as San Francisco for a few more months then not at all. Bell is changing their Nimiq 91 and the new foot print will be the same as Nimiq 82 so only just a little south of the border.
Bell 82 is pointed further north so I have only had luck if I am only 200 miles south of the border or less. So no HD and soon no Bell satellite south of the 39th parallel by the end of 2012
I would hold off on the Wineguard set up for Bell just yet you may need to switch to Shaw to get Canadian Satellite service south of the border. I dont think the Wineguard set up for Bell can be switched to Shaw (different LNB) They do make a specific Wineguard carry out for Shaw but they cannot be switched from bell to Shaw
Link to new Nimiq 6 Bell 91 footprint
http://www.satbeams.com/satellites?norad=38342
Good luck