When looking at resales we applied for a pre-approved credit with Tammac. We have a FICO score of almost 800, which was going to earn us an interest rate of 11.75%! We felt that this was way out of line with our excellent credit score.
If you have a very good reputation with your bank, you may qualify for a personal loan. Home equity loans are great to use too. Some people will re-morgage their homes since these loans seem to carry the lowest interest rate you can get.
If your company has a 401K plan or something of the sort, you might look at borrowing your own money. We are able to do this, pay ourselves back with 6% interest while we are earning 5% on the money that was "frozen" in our account for the loan. In all, we pay 1% interest.