I have a Tripper S model, made by Western Canoeing in BC, Canada. It's small for what you would like, it's 16'9". It can be paddled solo and handles very well. They have a larger model, the Tripper which is a full size expedition canoe. Mine is kevlar and it weighs 52lbs. I can handle loading and unloading myself off of the top of my truck.
Being here in Colorado I really miss having nice rivers and lakes to paddle on and have to content myself doing laps on the little reservoirs around here.
Don't know what your budget is, but there are a lot of good used canoes out there. See what's on your local craigslist and post up here for others to comment on its appropriateness and quality. For instance, there's an aluminum Grumman Eagle for sale on the Denver craigslist right now for $200. While I'm not a big fan of aluminum canoes, the Grumman Eagle was a better design than the standard Grumman and $200 is pretty cheap to get out on the water. Plus aluminum canoes can stand a lot of abuse. I have a friend who used to throw some sand in the bottom of his aluminum canoe and build a campfire to cook his lunch while floating down a river. Probably not advisable in a plastic boat.
One of my favorite canoes is an old fiberglass Mohawk Jensen WWIII that I bought from a newspaper ad for $50 twenty five years ago. I've gotten tons of enjoyment and hundreds of paddling miles out of it and it's got at least another 25yrs left in it.