If you train on a Concept II erg that's been converted to a paddler with an adapter, one of the things that might plague you is the boredom of not going anywhere and the unchanging scenery of your living room. Now, thanks to modern (and inexpensive) technology, you can make your workouts much more interesting and fun.
If you have a GoPro camera or a Flip cam with a waterproof case, mount it to the front of your canoe pointing forward and record one of your workouts. Try to capture interesting scenery going by - the more entertaining the better.
Once you get home, convert the video to play on your television. There are a number of free programs out there that will convert your training video and get it onto a DVD. I ripped my training video into iTunes and use my iPod for playback on a big TV. Situate your paddler and yourself in front of the television, start your video and paddle away. I've found this much more interesting than watching a movie (which I can't hear over the erg anyway) and with a little suspension of disbelief, you can feel like you're actually going somewhere without leaving the room. I have video of fellow paddlers getting passed, which makes the video training that much more fun.
Here's my blog entry and an accompanying video that I posted of my setup:
http://feljcruz.blogspot.com/2009/01/paddling-in-my-living-room-and.html
Please leave me comments or suggestions on my blog.
Let me know what you think and perhaps we can start a database of videos for other landlocked (or weatherlocked) paddlers that have an erg/paddler setup.