I recommend hostingsource.com, I've read lots of reviews on their dedicated servers and think that they are stable and quality host
Singlehop is a good dedicated hosting provider,you can choose limestonenetworks in case if you need unmanaged servers.For cheapest Burst.net is a good deal,But not recommended as their service is poor.You get what you pay,is very true for dedicated hosting.
I know that Serverpoint.com is providing high quality dedicated server solutions with high uptime, performance and experienced support
I think that you will find the abundance of dedicated server hosting providers.. . read reviews before to make any final decision.
Basically this depends your requirements and location you wish to have your dedicated server. And budget with support is a major factor you need to look upon.
I'm not sure about dedicated servers, but I know that they're pricing isn't half bad, but the speed is amazing.
go with host store http://www.hoststore.com/dedicated-servers prices are cheap. but try to contact them for addition discount. hostgator is great (i were own a server with them last year) but really expensive prices.