iTunes Alarm Clock (iCal + Applescript)

set volume output volume 100 -- system volume
property p : "Recent" -- name of playlist to play
property t : 100 -- number of seconds to get to final volume
property v : 50 -- final volume
tell application "iTunes"
    set sound volume to 0
    set shuffle of playlist p to true
    play playlist p
    set view of front browser window to playlist p
    repeat while ((sound volume) is less than v)
        set sound volume to (sound volume + 2)
        delay ((t / v) * 2)
    end repeat
end tell

[send to Script Editor]

Based on comments on this macosxhint (checking for the presence of a BlueTooth phone is a great idea) and Doug Adam's hints.