Sounds like an oncidium to me too. Especially since it's smallish.
Jenmcd---do they kind of look like a lady with a skirt on? and little arms sticking out and a small head on top? if so, then it's an oncidium and you can find them at many home depots and lowes. They tend to be good house plants.
Check out the oncidiums here - ODONTONIA (Odontoglossum x Miltonia)
You have to scroll all the way down .. and in doing so, get a good eyeful of all the other beauties on this page