Gaming Emergency - more USB slots needed!

[CYMBOL]

Hello my fellow Blu-ray buddies,

Got an issue.

Had a 60 gig which got the Red Light a few months ago.

Got a new Slim.

Problem is, my kid has a birthday party, TOMORROW, and I've just realized I don't have enough USB slots for the drums, guitar and mic for Rock Band.

I stopped at a gamestop and asked if they had some kind of expansion for it - they were clueless and said, "I know the 360 has one, don't think the PS3 has one - but Rock Back is on the way out anyway."

I don't need an opinion on the relevance of Rock Band in gaming today - I need an expansion.

Anyway, does anyone know if something like this exists - or, if there something that can be used that can be purchased at best buy, or something - that will do what I need?

Remember, I need it by tomorrow, so using Amazon or something won't work.

Any ideas?

Thanks guys,