Just want to give a shout out to OT's Rotary (free!) library. This big band library is quite extensive: solo trumpet, mute trumpet, trombone, and bari sax, as well as sax and brass sections. It gives you a nice variety of hits/stabs -- falls, shakes, scoops, and staccatissimo -- as well as accented sus, marcato long, and some trills. And three mic positions! I just downloaded the tree, since I will probably use this as a sketching library. But as long as you don't need a melodic line (or at least, one that isn't too long), this library is great for adding big band accents and hits to a track. I'm impressed.