Hi, I'm new here. I have the following question: I am about to buy a new laptop. I got an offer to two computers at the same price: The first, IBM T43 comes with a Pentium M 1.86 GHz processor. The second, a T60, comes with Duo Core 1.66 GHz processor. All other specifications are identical, and price is identical. Any suggestions as to which to pick? I will be using it mostly for internet, e-mail and mp3's, not heavy gaming. Also, if I get Duo Core, is it upgradable? Thanks a lot guys.