I've requested a new stethoscope for Christmas before I hit clinics in January. I know I want a Littmann, but which kind to choose is perplexing me. I think the cardio III sounds the most appealing, but I'm just wondering if anyone on here can advise me about it from their own experience? I am likely to be working on a variety of large and small animals as I'm going into wildlife (actually, it looks like I might be doing marine animals to start off when I graduate). I want something that's both high quality and versatile enough to work well for a wide range of species. Any suggestions?