Today’s Nobel Prize in Physics is for the discovery of Giant Magnetoresistance. This was discovered less than twenty years ago, and now you use it in your iPod. Less than twenty years from unknown to ubiquitous: The Singularity is Near. On that Nobel Prize link, note that the page 1 graph is logarithmic. That is a >100x improvement in a decade.
If you have an iPod and still have some money to toss around, why not convert your computer entirely to flash memory? Hard drives with moving parts are so unreliable, and that 320GB drive will cost a little less than $10,000.