I need an external hard drive for music for DJing. I want to get into it, but I want to make sure the hard drive is suitable for playing/mixing/manipulating live music. Any advice? Will 5400rpm be fast enough? Firewire powered fast enough? Is there a way to make it compatible on pc as well so i can sync my music from my pc (ubuntu or windows)? Also, it'd be cool if the transfer rate was sufficient for producing music. Any advice would be appreciated. Thanks!