Lines of Credit

We have been offered a $10,000 line of credit with the Bank of Montreal because of our good history with our auto loan and credit card that we have with them.  They are offering us a really reasonable rate (less than 4%), no credit check and it would be unsecured.



We're very interested because of the work were planning to do on the back yard this year, we were planning on having to use the credit card a bit as we saved up money (we won't have the $10,000 for the yard technically until December, 2013 so were planning on using the CC and then paying it off as we saved the $$).



A line of credit with such a low interest rate would seriously help with the interest for next year's back yard project.



....what are your thoughts?