How Do I Setup A Vpn That Also Hides My Ip Address On A Local Pc

I am after a detailed guide or answer, I am an intermediate PC user. I dont want to use free services like Hotspot shield as they are too slow most of the time, TOR is good for browsing but slow and not allowed for p2p torrents! I want to make the most of my ISP bandwidth 20 m/bits, any answers would be greatly appreciated, this would make a great guide to add to MakeUseOf’s already extensive collection! Please note I prefer open source as it seems to be more reliable and also has great community support.