The discussion begins here. Whatcha like, what dontcha like, and why? There's no big theme that I know of. The predominance of trombones and clarinets is a happy accident. Latecomers are welcome, and can download here. That link takes you to a confusing spot with several download links – you want the one in a light-blue rectangle that says "Click here to start download from sendspace." Play early and often.