My boyfriend is a musician and I'm thinking about getting him some cool gadget for his ipod but I can't figure out what...I'm currently thinking about iKaraoke or iRecord, but would really like to hear other ideas. The only thing is, I don't want to get him a sound system/speakers because he already has a system as well as portable speakers. Any help would be appreciated...thanks!

or if someone could recommend a site with a large selection of ipod gadgetry, that'd be great.