Just filing this away for a rainy day… if you’re using Windows Vista you can take advantage of the ReadyBoost feature. Plugging in a USB memory stick (or SD / Memory Stick /etc.) will supplement the main system memory with the amount of flash memory on the stick. However, it has been limited to work with only the high-speed USB sticks.
Windows Vista Magazine brings us a nice tweak on how to Use any USB stick to ReadyBoost your computer.