Good luck upgrading the laptop. The most you'll be able to do is upgrade RAM. Laptops are very restricted due to the small form factor.
To get a upgrade out of anything, isn't it possible to replace the motherboard and the motherboard only if it's tiny, even then it'd be hard finding some decent stuff for it
Get a new PC or if you have the £1,000 to spare buy a standard gaming laptop, none of that alienware stuff, 11 inch gaming netbook-like is not worth it