So my parents finally said I could buy a horse

I currently lease a pony (but do ride many other horses and ponies) I am 15 years old, and about 5' tall. I compete in hunters in both local and A rated show, so I want a horse that can be competitive (good jump a must, good hacker would be a good bonus :) ) My budget is $25,00. If you guys have any ideas tell me about them. My trainer is going to help me start lookin seriously this summer.