I'm considering upgrading the hard drive and stand at a cross road. 1. I could get a 7200rpm internal 100 Gig HD but it could cause excessive heat and hence would make my fan come on more often which I DONT want as my mini is a music server. But i would sit back with a cheesy grin knowing my mini is top whack now. 2. I could get an external 7200rpm HD which obiously would be several times bigger than option 1. Id have to boot from this, would this be as fast as option 1 giving the limiting factors of firewire/usb 2.0. Plus its visible and the "coolness" of having no wires and no clutter on my desktop will be comprimised. Anyone have any experiences with modding to an internal 7200rpm HD? What is the noise level of it anyway? Also does anyone boot from an external HD? Significant speed increase or retardation?