Professional video service for demo video

[hoop]

Hi,
my iPhone game is almost ready to be released and I'm looking for a company for professional video editing.
The way my iPhone game interacts with the player is unique so it needs to be captured using live cameras.
I've heard really good things about Hilo Media but I was wondering if you guys have had experience with other services as well.
I'm an indie developer so my budget is quite strict, do you know how much it would cost?
The demo should be no more than 1 minute long and should include text, music and voiceover.

Thanks a lot!