I was about to buy the 2.66 15" 4gb ram, 9400m + 9600m gt 256mb, 320GB HDD, MBP. But I saw they have a limited stock for the previous version of the MBP. The one I listed above is S$3288 (Singapore dollars, in Singapore off course) but the previous version with a 2.4 Processor, 2gb ram, 250gb HDD, has a replaceable battery (the 4 hours battery), 9400m + 9600m gt 256mb, different (slot instead of the SD). This I found for S$2588. I will be using my MBP for 80% Music Production and 20% Gaming. Can I change the HDD and add ram for the previous version of the MBP ? Thank in advance. PS. I was willing to pay that much because that was the cheapest model carrying the 9600gt, but if I can add ram to the previous version and the processor is not a big difference from the 2.66 of the new one, then I should get this right ? Thanks again.