I bypassed all the apps and interfaces by simply attaching my Incredible as an external drive and dragging/dropping files from my iTunes library directly to my SD card. This way you can use ACC, MP3, whatever, as long as the Sense player can read it. No need to sync everything, just create a music directory at the root of your card and drag/drop (you can even make subdirectories), then get something like Cover Art Downloader for artwork. There's no need for an iPod.