What's the difference between the Dell 9300 and 6000?

[IlliniRyRy]

I'm trying to figure out which laptop to get, it's going to be used primarily for 4-tabling and using AIM and the internet, I don't download too much stuff besides MP3's. The 6000 is like $400 cheaper, so I don't know if it's worth it to get the 9300 or not. I'm definitely getting the WUXGA screen so I can eliminate overlap on either one, and I'm getting a wireless router as well, anyone have advice on what I should do? I can't find too many reasons why the 9300 is so much better. Thanks for your help.