If money is no object then you want a Royalex canoe. They're considerably lighter and about as durable as the other plastics.
Cricket's Disco 169 is probably the most common canoe you'll find on our streams. Stable, capable of carrying tons of gear, affordable, decent to paddle...but quite a bit heavier than a similar model made of Royalex. I bought a Penobscot 16RX a few weeks back and it's great...light as a feather and fast, but it has a little less initial stability than the Disco and they're more expensive. You have to decide what's important to you in a canoe, because there are so many models that will do the job. Some excel at certain aspects more than others, but there is no single "perfect" canoe for everyone. You can't really go too wrong in terms of quality with most models from Old Town, Wenonah, Buffalo, Mohawk, Two Brothers...but which model is right for you depends on your priorities...manueverability or tracking? stability or speed? light and expensive or a little heavier and cheaper?
Start looking on craigslist and ebay. There are some great deals to be had out there.