Ok...looking to purchase a new desktop. I just use Coreldraw X4 for designing and don't need the latest and greatest speed demon. My question is, would an Intel i3 2.93 or 3.20 suffice or should step up to a i5 or amd quad core. I understand that more ram the better and I don't need a "gamer" graphics card, but how much performance gain would there be having a quad core over a dual core... considering my requirements (and budget)?