This is a real easy way to solve this problem:
Go to amazon.com, search the name of a group whose music you are familiar with / like to ski to, then, amazon.com will come up with a "users who liked this group also liked..." link. follow it. Then listen to the 30 sec. samples till your heart is content. at that point, you can either buy the cd's from there, or download them from the appropriate channels.
Good luck.