What is all required...

[Utah]

Once purchasing vBulletin, what else is required aside from a server? Does MsSQL come with it or is that seperate?

[Incendium]

You need to put it on a server that runs MySQL and PHP.

[Zachery]

It would be best for you, if your begining to find a good shared hosting company.

Most startup sites do not require a fully dedicated server.