When Apple bought Coverflow to include in iTunes 7, I was both happy and sad. At first I was happy that iTunes finally had a nice interface for my album art. Sadly, Coverflow was no longer available (or so I thought). Coverflow downloaded album art from Amazon while iTunes uses the iTunes store (makes sense). I have some unusual CD's which iTunes just ignores the cover art for while Coverflow happily found.
Fret not art lovers! Coverflow can still be found at MacUpdate. Just a quick download and your back to the good old days of August 2006.