Rent Webhosting
This option is most likly your best bet. There are many compeating services running a competitive number of support services and they take care of all the administration and management
This is most commonly a server farm set up somewhere that is not prone to natural disaster and that has lower utility expenses, some municipalities even offer them tax breaks to move in.
Each provider hosts thousands of web sites with some hosting millions
These services are competitive, so you can choose the one that has the services you need and then shop around for price.
It is also advisable to look for reviews since some of them have less than stellar service