I was not able to locate a compatible 500 GB drive. But I did pick up the 320 GB ST3500830SCE Seagate drive from Buy dot com. Works like a champ. Thanks for the info.
$143 is pretty steep for a 500GB drive. Especially one that seamed to be available for less than $50 weeks ago. Has anyone upgraded to a larger drive and needs to get rid of their old Vip 622 hard drive?