This 128 Gigabyte SSD drive is only AU$99.00. This is an awesome deal for the price that is asked; Since Debian can boot very fast anyway; having an SSD drive as your boot drive would make your computer boot up very fast indeed. Solid State Drives use microchips to store data instead of using platters and moving read-write heads; this means that the read times are very fast; the drive does not need to seek over a platter to find the various bits of data to load the operating system. It is read from the flash chips instead.
Here is a video of an Ubuntu 10.04 machine booting on an SSD drive.
Here is a page on the Debian WIKI that explains how to optimise your Debian system to run on an SSD. This will optimise a Debian system when running on an SSD to prolong its life.