If you are fairly new to this sort of thing or simply open to suggestions from us well-trodden professionals, then consider a few pointers before you go headlong into production.  

Tips will give you an insight into working with voices, plus highlight the pitfalls of script writing and styles and as you read you will surely sit there and say to yourself “that is exactly what I think”. Well you and a billion others, but now is your chance to do something about it!

Finding a Voice There is a multitude of possibilities out there; choice and ability verses convenience is paramount.