For many of us, the cost of a table saw is too much just to be able to make long straight cuts in sheet lumber. If you buy a smaller table saw, you are actually creating a very dangerous situation as these are not meant to cut large pieces of lumber. What about space. A table saw is a space hog, especially when not in use.
SOLUTION? BUILD A JIG! A circular saw is a very common tool for home owners. You can buy battery powered versions that come in kits or go for a nice corded one. This should take you about an hour if you have all the supplies.
This instructable is a follow-on to a concept presented by http://www.instructables.com/id/Cutting-plywood-the-easy-way/