Server Co-location is your best bet. Just did a quick search and came up with Layer 42, who hosts client such as Nokia and Meebo.
http://layer42.net/services.html#colocate
Costs available on above link.
Quote:
* Unlimited ability to upgrade your site or sites. Add streaming media, a database, or a secure certificate to your website without slowing it down. In fact, add more RAM or another hard drive if you need to- it's your server!
* Administer your own machine, or let us do it.
* Add websites for no additional monthly increase in cost.
* 24/7 monitoring of your server.
* Availability of managed services from our professional staff.
* Daily, weekly, and monthly traffic reports.
* Security- you decide how to protect your data, or consult with one of our Network Security Experts.
* A burstable connection up to 100MB on a redundant high-speed network.
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