Well the imagining is over with Dan Rider's awesome a cappella version. I know I shared it in the past but I love it so much. Below are a few more great fan made versions of the theme:
Crorousseau's A Cappella "I Am The Doctor"
And lastly, I found the Warp Zone's version today
Countdown Till Christmas Special Airs: 12 sleeps
Countdown Till This Whovian (probably) sees the Christmas Special: 14 sleeps
Yesterday's Countdown Post: Day 13: Wednesday Weekly Art #5
Episodes Watched: ...none, tonight was watching Star Wars