Real world workflow, is there much difference between the first generation MacBook Pro 2.0MHz Core Duo w/ 2GB L2 cache w/ 2GB ram and newer MBP that allows a bit more ram, slightly higher bus speed and L2 cache? 2.2MHz Core 2 Duo w/ 4GB L2 cache w/ 4GB ram I guess a side question is how much difference does 2GB vs 4GB of ram make? We have 2 Macs -- a 1G MBP and a G5. The g5 seems quite quick -- it also has 3GB ram and a 7200rmp drive. As I update the apps on my 1.8 dual G5 to universal versions I may move to the portable platform and sell my G5. By doing so I'd need to get another laptop for the rest of the family to use. So the question is: use our current MBP for work and get an older MB for the family, or search for a newer MB/MBP and leave the 1st gen MBP for the as the family portable? Thanks.