Embedding iTunes Artwork into MP3s

I have a HUGE library of music that I manage with iTunes right now. This goes back to my college days at Georgia Tech when a buddy came back from working one summer in 1997 and showed us that we could rip our CDs to something more portable then that god awful Real format. Anyway, since then, I have collected, tweaked, manicured and loved my music collection and that is a process that will probably never end.

I am an iPod user and iTunes just works, even though it can be a little slow with that xml backend (can anyone say SqLite?). One problem I have is that after my hours, days, hell months, of painstaking work to make sure that every single file in my library has album art, I would really like to have all that art embedded into the actual MP3 files. I really don't care that it will take up extra storage space, I just want to have that artwork show up on whatever device or in whatever application I am using!

Because I already have it all put together perfectly within iTunes, I obviously have been trying to find something that will pull that artwork and embed it automatically. While I still have not found the perfect way to do this, I did run across a piece of open source software called iTSfv. It seems to work, but in a manual sort of way. It also has about a million more features then I would ever need, but it does succesfully take the "folder.jpg" that iTunes references and embeds it in each and every MP3 file selected. Better then nothing, but the search continues!