here is one Ipod recording add on...
http://www.sweetwater.com/store/detail/ProTrack/
And another one that is a mixer and interface device
http://www.sweetwater.com/store/detail/TuneStudio/
And here is the ikey and iConnex devices.
the iKey uses any standard usb drive and can record from a Turntable directly. Phono amp built in..
http://www.ikey-audio.com/ikeyplus.htm