Hi, i would like to build my first pc, this pc will be mainly used for playing online games like Live for speed, simraceway etc. I will also be using it to download multiple movies at once and i would like to connect it to my 42inch plasma. To be honest i have been searching this forum but i have no idea where to begin i.e motherboard,cpu,psu,gpu,ram, os hard disk (for the build i will have a friend who will show me how to build it). I would prefer if the mobo was gigabyte as i had one on my current pc which lasted 8 years with an intel cpu. My budget is somewhere in the region of $700 but i could stretch it a bit more if needed. If possible i want this pc to last a couple of years if its possible with this budget. Thanks!