I'm a complete newbie when it comes to building PC's, the only experience upgrading I have is RAM. How difficult will it be? What if I break something? If I build it and a part doesn't work what do I do? Would it be worth paying extra to get someone to put it together for me? Any other advice?
As in the title, I'm looking for a Gaming build for around £700, I'm looking to play current and future games (2012-) at medium settings at least.
I have a general idea of the parts I want and I don't need any Accessories or OS.