If you can grow corn, put your squash in amongst the corn. It gets messy to walk in but the corn will shade the squash and the squash keeps out the critters from pulling down the corn. It also works with pole beans. They use the corn to grow upwards. Again messy but effective. That growing pattern is called The Three Sisters - here's a link to info on it if you are interested.
RE: Those Tempting Horrible Seed Catalogs