Youtube just recently released a new Youtube Feature that will turn your 2D youtube Videos to 3D with just some few clicks.
No need for a 3D camera. all 2D videos can be turned to 3D.
here's how to turn your 2D youtube videos, 3D.
1. Sign-in on your youtube account
3. click EDIT info
4. Click 3D VIDEO
there are more new feature that comes with 3D conversion. to know more about that features just go to http://youtube-global.blogspot.com/
if you want to know what Youtube just released earlier this week click this http://katechpunan.blogspot.com/2011/09/youtube-makes-video-editing-awesome.html
P.S: you and your friends still need a 3D glasses(you can make one actually)
UPDATE: heres the sample of the Youtube Video I converted to 3D.. watch it on youtube.com then click 3D