I can't decide whether to get a 12 inch or a 15 inch powerbook. I will be surfing the internet, playing World of Warcraft, word processing, and sometimes watching movies. I would max out the ram on the 12 inch, 1.25 gb, upgrade hard drive to 100gb, and add superdrive. On the 15 inch I would upgrade ram to 1 gb, upgrade video card to 128mb, and uprade to 100 gb hard drive, with a combo drive. Any suggestions? P.S. Anyone know where to get ram for models and should I get low power ram?