I've got a G4 with the OWC Mercury Extreme 1.5GHz upgrade installed. I'm about to go to college, so I'm wondering if I should look for a cheap low end 1.6GHz G5. Am I going to see a noticeable performance boost? I mainly play games like Warcraft and use MS Word/Internet. No major editing stuff. Is the 1.6GHz G5 much faster than the G4? I've seen some disappointing benchmarks that seem to prove the G5 chip is no better than the G4. I figured the 64-bit would really make a difference...doesn't look that way.