here's the deal. I just bought a 13" 2.53 MBP with a free 8GB iPod Touch (after rebate) from the Apple store. I got the laptop for $1400 which includes my educator discount. but now, I have the opportunity to buy a 13" 2.26 MBP for $900 from someone who tells me he gets them at wholesale prices. the 2.26 only has 2GB of RAM vs. 4GB on my 2.53 model. also, the 2.26 has a 160GB hard drive vs. 250GB on my 2.53 model. so my question is: would there be a big difference between the two or would I be better off by saving the $500 (plus sales tax on $1400) and getting the 2.26 model w/o the iPod touch? please give me your opinion(s).