Ha! Check this study! They prove that if you wait long enough to buy a new computer, you will actually work faster on that new PC because of Moore’s Law. Or something like that. I’m a bit scientifically challenged…As they say themselves: “You could go to the beach for 2 years, then come back and buy a new computer and compute for a year, and get the same amount of work done.”
They also calculate the optimal and maximal slackage. Now that’s getting things done!