I am just starting out, and I need to know what a good trumpet would be for a beginner like myself. I am only 15 and the money for this trumpet is coming out of my own pocket. I was thinking somewhere around the $300 or less range. I do not care if it is used. Right now I am looking at: Infinity Brass Trumpet: $129, Olds Ambassador Student Trumpet: $149, Holton: $129, and some others. Please give me some advise on what I should get.