I am a Channel 4 announcer here in the UK with many years of
experience in the TV & radio industries and if you're a budding voice
actor, you may be interested in a free online voice-over tutorial. On
my website you can try your hand (well, your voice) at the interactive
vo masterclass, which involves speaking to time and has useful tips on
style and delivery. I hope you find it fun and informative.
You'll find it at http://www.vomasterclass.co.uk
Happy voicing.