Top 10 System Start-Up Sounds

A few of us were talking about this in the Olympic Olympiad chat. At the time, I said the Dreamcast had the best one, but after going through them all, I think the PlayStation has the best. It's just...sort of magical. That echo of the orange swirl is tough to beat though.

These aren't necessarily in order of my favorite systems (except for the #1 spot). Just favorite boot sequence and/or start-up menu sounds.