If you are renting the plane from a school, stick to the one in the school.
If it is just a C150 from a private person, ask for the one in the POH as someone has already suggested.
Anyways, if you want to buy your own checklist, you might want to check out ebay or marvgolden.com - they've got a few there.
I have bought some of them myself and they are pretty good.