You might have missed the fact that notebook hard drive capacities have increased recently. For those power users that need lots of space, there are a few more options for you.
If you are looking for the largest 7200 RPM disk that you can get in the 9.5mm size, you should look at the new Seagate Momentus 750 GB drive (Model ST9750420AS) or the SAMSUNG Spinpoint 640GB drive (Model MP4 HM640JJ).
If you are looking for SSD like performance, need large amounts of disk space, but do not have the funds to pay for SSD, there is a new line of hybrid drives that combine 7200 RPM and SSD technology to achieve performance between a pure 7200 RPM and SSD technology drive. Seagate Momentus XT 500 GB drive (Model ST95005620AS) is currently the largest size available.
So if you are looking for size, performance, or a combination of both, you now have new options to investigate.
I am currently testing the 500 GB hybrid drive from Seagate and have had a great experience so far....hope you also have a great experience.