I've done the Home equity loan a few times and it worked well for me. You borrow against the value of your house. In your case you would have a low payment on this amount until you sell your house. Once you sell your house then pay it off. (Most banks will require the equity loan be paid off upon the sale of the house). As was mentioned before spend it in areas of big gain like kitchens, bathrooms, exterior upgrades, roofing, family rooms, those seem to get the most bang for the buck.
I bought a house for $28G it had 22G in Equity. I used about $10G of the equity, did the work myself and then sold the house for $60G.
It works if you use it wisely.