In reply to andy:
> but I think you might struggle more with storage other than something cloudy -
Don't get sucked into the hype of cloud storage. Why pay somebody a monthly fee to store your information when you can create your own personal cloud from home, and have access from anywhere in the world with no monthly fees?
A simple NAS storage device will fit the bill. You can even get them what will allow a printer to connect to them as well. I have not done this but I have read about it.
personally, I would not ditch the PC. Tablet PC's are fine but they have their limits which you will discover very quickly. My plan was to ditch the laptop once I got a tablet but I am so glad that I kept my laptop.
If you want to keep your electricity bills down and the noise levels down then, as Dominion says, get a Raspberry Pie but remember, they are tricky little buggers to set up. My Raspberry Pie is set up to play all my music, movies and TV shows onto my telly. Not bad for £28.