This private server is the best pretty much if you are looking for a private server with a lot of pvp. How to connect:
1. Go to http://warcraftmmorpg.com/




2. If you want to make it easier and not change your realm list the whole time I recommend Wowscape Private Server Launcher. You can download that here http://www.wowscape.net/?act=Connect scroll down then click Download for whatever you have (Linux, Mac, Pc)
3. Please don't make the same mistake I did with my rogue!!! DO NOT SAP THE GM's!!! I was sent to Gmisland and I could not get out. I had you delete him!!!
4. Have Fun!!!