I am in a potential transition phase with my MacBook and was wondering about how/when members go about deciding its time to retire the old and grab the new? I have a white MacBook that I purchased in Spring 2008 (my first Mac) and its been moving pretty sluggish. I purchased a USB HDD to back up my data because I'm concerned about a potential crash. I really would like to invest in one of the new MacBook Pros but I am up against not only (potentially) my wife but fear that I may be jumping the gun. Its served me well these 3 years and I don't like the idea of running it into the ground.