shop bought PCs

I'm moving out into my own place soon and I'm looking to buy a PC to just surf the net, watching anime & listen to music on when I'm off work. I don't have a single clue about building a PC so I just want to go to a store and buy one, any suggestions?

My ideal budget is around £800.

for £800 I could build a pretty crazy machine

that's a lot of money for a computer, you could build a good gaming pc with 800 us dollars