Good morning! I just helped an older friend of mine who is a self-proclaimed "Analog man living in a Digital world" order a new 17" iMac. He's upgrading from an old G3 "color" iMac that is like 7 years old. I've only been a Mac user since May of 2006, so my knowledge is still limited. Now, I know that new macs have a "Audio line in/optical digital audio input (minijack)". Now, what we were wondering is if there's a way for him to hook up his Electric Godin Mandolin? I personally have a Firepod and am happy with it, so I have never tried doing anything like this. He plays Mandolin and wanted to see if he could hook it up via that digital input and use Garageband just for the purpose of messing around. He would also be interested in hooking up his Green Bullet mic and recording some harp too, if possible. If not, does anyone know of a cheap interface (like a Firebox, but cheaper) that would allow him to do this? Probably something in the $50-$100 range. Like I said, he just wants to experiment and is not interested in spending a lot of money on it. Any help would be appreciated. Thank you.