You can go online to TaxAct or TurboTax and check your returns at no cost.
http://www.2ndstorysoftware.com/
http://turbotax.intuit.com/index.jsp
This will allow you to check your liability for different scenarios, married filing jointly, married filing separately, to see which is best.
I don't have the highest regard for the H&R Block store-front operations. An accountant would cost a little more, but be a worthwhile investment.
