Why don't check serverpoint.com? They are one of the biggest dediccated server provider and I believe they can allow very reach choice of the dedicated servers
If you want the information about the unmettered servers check this site for the plans and the other informations regarding the unmettered servers, http://www.choopa.com/unmetered_servers/
Quality unmetered servers I know are presented by the companies like webintellects in the USA and 7host in Europe. I know these companies are reliable and offering quality hosting for quite a long period of time, so you might have choisen one of them.