Here's a website that has downloads of various Phish compilations. Kind of an interesting way to listen to the band, if there are particular musical styles you love, or others you want to avoid. For example, one compilation is their bluegrassy stuff. Another compilation is called Oxyhose, as I guess it is culled from the period when Trey was heavy into pills. Think I'll avoid that one, but your mileage may vary. Looks like they'll keep on updating it with new compilations, so check back later if you don't see anything that suits your fancy yet.