I bought an imac 3.06 on black Friday. This will be my first mac. Since I did not do my research on when they update, it looks like (according to the buyers guide) that they will update next year. I mostly used my pc in the past to encode movies with handbrake. I called to see if I could return it (I opened the box) and they told me I could get store credit but would have to pay the restocking fee (around $200 I assume). If the imac was to get quad cores early next year would it be worth it in my case to pay the restocking fee?