Here's our story of how we got started.
Knew we wanted OKW and an Oct UY. Had been in contact with a
DVC rep over the last 3 years...I was ready but DH wasn't.
Once the decision was made to buy I looked into how many points. What i did was figure out how many points it would cost us to stay in a Studio(all that we
need, not necessarily what I want) over the Christmas Holidays and made that my target for points. Wasn't ready to purchase that many points right away so dropped it by 50 or so points. Bought in direct for 100 points. Used my line of credit to pay in full, and just aggressively put any and all extra money towards paying down the line of credit. With extra over-time and an income tax return it took us about 4 months to pay it off. Then when we had a little extra money again we purchased and add-on of 25 points bringing us up to 125. Next time there's a little extra I will do another add-on of 25 which will get me to my target of 150 points.
Things are a little different here in Canada with credit ratings and such but if you can avoid furnacing your purchase or do it with personal lines that you are able to pay off quickly I think you will be better for it. Again, I am not familiar with how financing works in the States.
Best of luck