Electronic legal research can be very expensive. Fortunately, there are a few lower cost options out there, including Loislaw and Versuslaw. There is a nice short article comparing the two in the February 2007 edition of The CRIV Sheet (which is an insert in AALL Spectrum).
When looking at your research options, Loislaw and Versuslaw are definitely worth considering. The amount of information available in these databases is much less than Lexis and Westlaw, but sometimes you don’t need all that information, and a smaller database may provide just enough of what you seek. They are both reasonably priced and provide a good service to their users.