The Who - "Tommy" ; the version performed by the London Symphony Orchestra, et al. I sold my original copy while in College in the 70's, just purchased a new (ie used) copy complete with box, gatefold, and program. It's always been a favorite, and it's well recorded and a good vinyl pressing.
Gary Jules "Greetings from the Other Side", and "Trading Snake Oil for Wolftickets" (on cd - is it ok to discuss cd's in this thread?). I recently bought these after hearing his version of "Mad World" on an episode of "CSI". It's a haunting and beautiful song, and struck me like Jeff Buckley's "Halleluja" the first time I heard it. Both of these CD's are excellent all the way through - Songs, Performance, and sonics. . . . If you're not familiar with this guy you should check him out.