I am in the market for a base-model iMac 27''. I am leaning more towards the 27'' vs. 21'' for screen real estate. I wont be doing any video / photo editing, but I will be lightly gaming (Starcraft, Borderlands, WoW, COD). Any input on whether waiting for a refreshed iMac will make a big difference, and what configurations would you recommend if not the base iMac 27''? Thanks in advance for your input.