Music Composers Unite!
I have a quite capable machine as my main DAW, recent quadcore processor, loads of RAM, great RME soundcard so for a while I have been living without any real workflow problems like for example having to bounce tracks or working with unacceptable latency.
Of course this made me overconfident because when I was setting up a new orchestral template I was not holding back in any way. One after the other massive multisample got loaded in, spiced with the necessary convolution reverbs and whatever else I felt like throwing in.
Final result : burning harddisks, dropped notes, RAM maxed out and a composer spending 2 days tweaking this monster template to something that actually works while trying to keep himself from ordering extra memory or the latest fastest hard disks.
The moral of the story, as I found out yet again for the millionth time in more than a decade of making music : it doesn't matter how powerful your new system is , within a year you will find a way to max it out again.