Well for you want to be doing, an a 5930 or 5820 (whichever you meant) would be complete overkill and will also require you to buy more expensive and premium motherboards. What I would recommend instead would be an i7 4770k, which is an amazing multi-tasker. If your budget is really less than 100 though, there's no way you'll be getting a 780 and 4770k. I would in fact recommend an i5 4690k and a 770. As for tje motherboard, go for an Asus z87-A