Excel 2007 : Index Formula: 2 Criteria Help

Greetings everyone this is probably just a simple Index / Match formula, but I have been trying to apply the examples of others to my problem and I'm not having any luck.
I have attached an example of what I need.

I need the formula to behave like a V Lookup with 2 criteria.

My data is organized in rows.

The first criteria is a column with months of the year. The second criteria is a column with part numbers. When both of these criteria are requested I want the formula to return the corresponding price from the 3rd column.

I also have a description in my excel sheet to illustrate what I am looking for.

Thanks for your help!
Chris