Are you looking specifically for a dedicated server or would a VPS suffice? What specifications would you be looking at - other than those you've already stated?
I'm looking for a dedicated Specification : CPU : i5 760 or equivalent RAM : 4 to 8 GB HDD : 1 To Windows server 2003 or 2008
When you say "full unmetered" you're going to have to clarify what you mean by that. A dedicated 1gbps connection that you are not sharing with other users is easily going to run you in the thousands of dollars. A shared 1gpbs connection is going to be considerably cheaper.
Look here : http://www.online.net/serveur-dedie/offre-dedibox-qc.xhtml (100$ with windows server) But they sell only for French people. I mean by FULL Unmetred that they did not limit speed to 100 or 10 Mbps after 10 TB of bandwidth for example.
Ahhhh okay. Yeah, you should be able to find something like that at a fairly reasonable price. Remember though that you will be sharing that connection with other servers, so you aren't going to be able to push 1gbps constantly...in fact you probably won't be able to come anywhere close. But it still should be faster than a 100mbit connection.
Check out FDCServers. fdcservers dot com. They're the only ones I can think of that will give you a full gig unmetered at a reasonable price.