hi. i will be starting nursing school in january. i have been looking around at the different brands of stethoscopes. i have also done a search on this board for stethoscopes and have read through the messages posted there. any recommendations for a good stethoscope and also is it worth the extra money to purchase a good one versus a cheap one? a friend of mine who is an ER nurse says that i do not need to spend more than $20. on a scope. i would love to get some ideas on what type to buy and also, what do you like about the stethoscope that you use?:)