Powerful dedicated server?

[Steak]

ASVhost.com and planethoster.com servers are well-balanced and low cost. They are Superb! They are affordable and the best.

[Krot]

A great list of dedicated servers you'll find at Orangeserver.net - they are experts.
High-speed server performance. Dedicated and passionate customer support + useful tools for the website!

[Volfrem]

Servers from hostingsource.com and hostround.com are worth trying due to their top-notch services.
Their servers are fully-redundant, scalable and flexible, control panel is usable and has web master-friendly interface and prices are not high.