We bought our first "timeshare" in 1992 and this was about the time when Disney was getting involved with the "Vacation Club". We looked into this concept breifly and may have got some bad info, but were scared off by the "points" as opposed to the "weeks". These days I am not sure there is a great deal of diffence between the two, except the DVC is disolved after a 42 year contract. This is not an issue unless we live to be older than 88. In any event, one must either save or borrow time to get more the a week or two at a given resort.
We bought 250 Disney point in 2000, and have used it a couple of times, but have learned the high seasons are not great value, although the resorts are second to none. If you buy Disney points, then use them at DVC resorts, don't trade them to I.I. or use them at the disney hotels, as they are expensive and your best bang for your buck is in the off season.
As far as finacing goes, the rates we were quoted were somewhere around 12% (OUCH). You can do much better at your local Canadian bank with a line of credit or a personal loan.
We do not regret buying at Orange Lake in Orlando, (RCI) and have used "get away" weeks in California and Arizona, something that cannot be done with Disney points, but both have pros and cons.
If you are contemplating DVC, I believe all transactions must be completed in Florida, there are some Canadian laws prohibiting the sale of DVC here. We live on Van. Island and have no difficulty with correspondence or the 1-800 numbers for resi's. We pay our dues via Visa, once a year, although the exchange rate leaves a lot to be desired, it's the cost of doing business.
What ever you decide you will enjoy your vacation at WDW, good luck.