So I had a baby and didn't get my mac yet. I bought a new laptop for my business when my home-made desktop died in 2004. It was in the heart of a project, so I needed a new computer immediately. I went to Costco and bought an HP Pavilion dv4000 - which I have been very cheerful with. So it is almost 5 in human years - what is that in computer years? According to this web calculator - twenty years.