Digital Network may help you to register your domain name and e-mail.
Some advices before registering your domain:
The right name
It is advisable to choose a domain which has any relation with the business using a name which is easily recognizable and memorizable. The name does not need to be long; shorter is better, do not underestimate this aspect.
Some extensions refer to server nationality: for instance .it means italian, .fr is for french, .uk is for english. The reality is not so easy anyway, it could be that a company register to a specific national server even if their nationality is different.
Commercial websites are normally identified by the suffix .com but this is not a firm rule; they are often registered as .net that identified a site network or even .org that is originally used to identified non-profit organizations. Suffix is nowadays purely indicative of the website business but does not identify it legally.
Other suffixes are used by institutions for research and learnign (.edu), governative institutions (.gov) and military forces (.mil).