The decision about what to call your web site ( the 'thingy' after the www ) is very important and is referred to as the domain name. Functionally there is NO difference between a .com or a .co.za BUT one thing is for sure - it needs to be easily read! The name should have a link to who you are or what you do and if you're in the South African Travel and Tourism industry - it really should be a .co.za ( to let everyone know that you are in South African and proud of it ).
Once you own your domain, with iTTCONNECT, we strongly advise that you use that domain name @yourname.co.za as part of your email address so that you advertise your domain ( www.yourname.co.za ) and not your email providers website.... ( sorry can't give you an example, they may get upset with us. )
If you have not registered your domain name yet, have a look if your required name is still available.