I was just reading about Instant FM Music over at Gadgetizer and it sounds pretty cool.

"The idea behind Instant FM Music is to record your favorite radio songs/playlist, but the amazing part is the capability it has to separate and identify each song."

From the ADSTech website:

"Ever listen to the radio and wonder what the name of the song is? Who is the artist? What year was it released? Instant FM Music helps you answer all of those questions! Just plug Instant FM Music into your USB Port, tune to your favorite local FM or Web Radio stations and watch as Instant FM Music & the included software not only record the station's entire playlist, but also separate and identify the songs for easy playback."

Features:

Discover Music – Find Song Title, Artist and Other Information

Record Radio Programming – Listen to the Entire Radio Playlist or Individual Songs

Playback Recordings on PC or Portable Music Players

Receive RDS/RBDS – Display Radio Text from FM Stations (only with Instant Radio application, not in Snaptune)

Retractable Antenna Included