I have the very first intel imac from way back in 06 and I was wondering if you think it would be worth it for me to upgrade to the top of the line 21.5 inch model. I am going to sell my current iMac for around $500 and can get both a student discount and 10% off my purchase. I would be doing a pretty steady amount of video editing and playing games like SC2 and minecraft on the new iMac. Now on my machine right now I can actually do these things but they are very laggy. Think it is time to upgrade now or should I wait for another refresh?