Turbo Tax is also offering a prepare and e-file for free again this year.  You can go here to get started.  I have always used turbo tax to prepare our taxes and have been very happy with it.  I want to get mine started but I have to get everything around first...There's always something!  

Update:  I found where you can also get up to an additional $20 off if you access the Turbo Tax software through Fidelity.com.  You don't have to be a Fidelity customer, you can just sign up as a visitor, here's the link.