I know I have at least one other guitar player on my flist, so here's a little recommendation: Dunlop Ultex picks. They sound even more like tortoiseshell than the Tortex and come in the same gauges. I did some playing yesterday (for the first time in a few months) and tried Tortex, Delrin, and a Cool Pick before landing on the Ultex, and liked the sound much better. Even at the lower gauges, they're stiff enough to play lines as well as changes, and they deliver a nice, bright sound. Definitely worth the quarter to find out.