Voice-over in English (more american that british)

Sigma is a post-production and production facility in Casablanca, Morocco (probably the biggest in North Africa): www.sigmatechno.com. . We have a lot of corporate films, TV commercials, or digital short films to adapt in English.
We are looking of ways to outsource those voice-over recordings. Is your voice without an accent in English ? then we might be interested in you. We don’t pay much, up to $75 recording for films less than 1min or $100 for less than 3min, but we can do volume.