What are your space and bandwidth requirements? Plus are there any other requirements like PHP, MySQL, Perl, Ruby ect. This sort of information would be helpful for people making suggestions.
I need similar with Shared Pro Hosting package (Disk Space 100 GB ,Bandwidth 1000 GB )..... But with more security and no downtime problems.
I think you need a dedicated hosting package.Have you made a budget?You need to pay about $200 per month.