Make a list of the domain names you would like and email them to your website designer.
Also mention what dot you would like after the domain name...eg .com .co.za .org
We recommend getting both the .com and the .co.za, .com will help with international searching and .co.za will help with local searching.
It also protects your company similar business starting up and competing on the web with you.
We also recommend getting a domain the matched your company name and other domains that represent what you offer consumers.eg Jonny and Son's would be www.jonnyandsons.co.za and www.townnamebuilders.co.za