Comment on iTunes

iTunes 8.1 offers a major speed improvement for me, as promised. I am running iTunes on a 4-year old 1.8 Ghz PPC G5 iMac with 1.5 GB RAM and was thinking of replacing the computer b/c iTunes was really getting slow with a 125GB music library and several dozen smart playlists. But it is now zippy and responsive. Very impressive upgrade.