Motorola 6200 vs Motorola DCX700
I don't think the DCX700 is usable in Peterborough. I'm in Cobourg, where we have all the SD and HD channels and can get Ultimate 30 and 50 internet. I assumed that meant I could use the all-digital DCX700. I phoned customer service to enquire if I could trade down from my DCT6412 as I wasn't using the PVR function, and was told they didn't have any in stock, but I might be able to get one at a storefront location.
Now, the nearest storefront to Cobourg is either Oakville or Kingston, so I got in my car on a Friday afternoon (more fool me) and headed for Oakville Place. Three hours later I arrived (thanks to heavy traffic and a truck rollover on the 401 at DVP) to be told they didn't have any either. They tried to phone Burlington for me but couldn't get through. Having come this far, I got back in my car headed for Burlington, which took another hour in creep-and-crawl traffic.
I arrived at Burlington Mall at 7pm, to be told yes, they did have the DCX700.

The rep checked into my location, then told me it wouldn't work in Cobourg as the cable wasn't all-digital.

She didn't want to send me back with something that wouldn't function, so I took a 6200 non-PVR. All of the reps I spoke to were polite and helpful, but if the first one I spoke to by phone had bothered to check she could have told me it wouldn't work and saved me half a day of frustration and 30 litres of gas.
The trip wasn't a total loss as I bought a Harmony 700 on sale to control my HD TV, STB, audio receiver, Blu Ray player, VCR and D-Link media streamer. It took some time to get it set up properly, but once I did I could put the 6 remotes away and just use one-button access to watch cable TV, stream media from the PC, etc. Occasionally the Harmony gets out of synch, e.g. if I don't keep it pointed at the entertainment centre until it's sent all its commands. Usually I can recover, but sometimes I have to pull out one of the old remotes which I keep handy.