Taxact is free to use to figure out and file your Federal Taxes. Our family has been using it for four years with great ease. You can print a copy and elect to mail them, or efile. Both options are FREE, no strings attached.
You can sign-up for an account and start filling in your 2010 information and it will save off where you left off for next session.
You can also use it to do your state taxes for a fee ($14.95 each state). Depending on the year we have done this also.
As always, when in doubt about your taxes/deductions/filing ask a professional.