Constant BSOD on new computer :(

Hi, after recently building my computer, I have constatly been getting BSOD's, only when im playing World of Warcraft. Although leaving the PC on with a program open overnite, it appears to have happened then as well. Everything will freeze up, blue screen will pop up then the computer does an automatic restart.

I have installed all the latest drivers for graphics card, wireless, windows updates.

BSOD's only flash on for 3 secs but i have collected these from three separate BSOD's:
Page fault in nonpaged area
An attempt has been made to write in read-only memory
System service exception

edit: ok it now crashed while browsing the internet..

Im not very experienced in this stuff but this seems to be pointing towards faulty RAM modules maybe? Can someone please help me figure this out im very worried.

Thanks.

n00bst3r