Which Turbo Tax should I buy?

No TurboTax (TT) naysayers, please! I have used TT the last 5 years or so and never had any problems. This is the first year I will be filing jointly with my wife. She pays taxes through her job/payroll, so her part will be easy. I paid taxes through my job/payroll January-April, after which I became a contract employee (I have saved plenty). I will be claiming business expenses for being a contractor and our medical insurance expenses. We have two mortgages and she has student loans, so we have a lot of interest to claim. I'm wondering if I NEED to get the Home & Business, or if I can get away with using Deluxe. Any feedback would be appreciated. Thanks!