We have a more complicated situation than yours. We had a CPA when we first got married (inherited from DH's single days). After the second year of marriage, I fired him due to his lack of questions and verification of a few things. This will be the second year doing it via TurboTax.
When I was 16 or 17, I started doing my own taxes free form and with your situation, you could easily do it with the manual forms and just cross reference to TurboTax (you avoid paying the filing fee with TurboTax). TT walks you through everything that you would need in your situation.
TurboTax charges a fee to file in my state, but my state's taxes are really simple. So after I complete our federal filing, I hope on over to my state Dept of Revenue and enter in a few numbers. It matches exactly what TT says, yet it is free. Saves us $30 or so (whatever TT charges to file a state).
Another bonus that folks don't talk about it the more you understand how your taxes work...the better you can plan and manage it. Our state and federal taxes are combined MORE THAN our annual living expenses, so learning something new about taxes can save us a lot of money. With our CPA, I felt like he was ok tactically, but terrible strategically (for example, I asked him about a back door Roth IRA in 2010 and his response was "I never thought of that"). With a CPA, I felt like I was providing the paperwork and waiting for the magic black box to tell me the answer of how much we owed. Now, I much more in charge and have been able to shave more money off our taxes by better thinking about things and planning (and thanks to all of you fine folks too).
You could also try reading Casey Murdock's book series on "Tax Insight". It has helped me with understanding AGI, deductions, credits, phase outs.