Down payment for a second house

[Sara Maree]

Here's the situation:

I am renting month-to-month, and I would like to purchase a home. I already own a condo, which is currently rented. I would like to keep it. I'm shopping in the $150K range. The condo has about $60K in equity. I have about $15K in savings, no consumer debt, and excellent credit. What's the best way to come up with 20 percent down for the new home?