Definately get a standard digital thermometer, regardless of if you are going to get an ear or forehead one. Just one fro the chemist, probably only about $10-15.

We have both a standard digital thermometer and an ear one... the standard one is good, seems to be a bit more accurate but only when we can get her to stay still and not pull it out for the two minutes it takes to take the temp. The ear one is quick, easy, and less traumatic for everyone LOL but sometimes I questions its accuracy, as you can take 10 readings and they'll all be different. Not by much though, but still. I guess theres pros and cons but i would definately get a standard one regardless because like I said the ear one seems less accurate, and the chemist said it was the 'best' one.