I own an iPod 4th generation, running iOS 5, and I'm looking for an alternate iPod manager to iTunes. I usually use foo_dop for Foobar2000, but that didn't update compatibility with iOS 5. My priorities are being able to convert from FLAC to MP3 or AAC, easily editing tags (especially album art with my own files), and organization by Album Artist (for compilation albums). I've tried out a couple different options (Amarok, CopyTrans Manager, gtkpod), but none of them have a clean UI or are particularly useful for my above requirements. Any suggestions?