My computer is all right but I have heard that if your computer is not brilliant
Your PC can not handle battle for middle earth how do I find out if it can ?

Give this site a go to check your computers spec.
System Requirements Lab
They run some tests on your machine and give you easy to understand results.

Personly I find it pretty easy. First go to store and look at the bck of the box. Somewhere in the coners it should list system requirements. Go bck to your house (dont buy game yet) and check for these things on your computer if you have everything or in some cases something better your good.