We need someone to create professional how to videos for using our software

We are currently developing business applications and we need a professional tech savy user with a British accent to create instructional videos/screen cast's.

We would give full written instructions we do not want any text to speech and slide shows we want someone with a bit of personality as you will be representing our brand.

We need several videos but this job is for one the screen cast would be roughly 2 min long.

Proof of similar work is essential.