I'm looking to get a MBP for college and I'm still undecided on whether I should get the 2.4 GHz processor or the 2.5 GHz. Is it worth the $500 to upgrade to the 2.5 GHz? Will it be that much faster? I know I'm upgrading to 4 GB of RAM and to the 200 GB Hardrive @ 7200 RPM.