Just saw an interesting Vista tidbit in an article at infoworld, though I'm not sure if it's a good thing or a bad thing. I mean, on one hand, increased performance is always a good thing. But on the other hand, one would think the 4GB of onboard RAM and a 7200RPM hard drive would be enough...

Get flashy: If you have an extra USB flash drive that you don't use for much else, Vista can cache disk reads on it, thereby boosting performance beyond what you'd get from your hard disk alone. Simply insert your flash drive into a USB 2.0 slot. If the drive is fast enough, a prompt will appear, asking whether you want to open the folder for the drive or use it to "Speed up my system using Windows ReadyBoost." Choose the latter option, and follow the remaining prompts. When you're calculating how much space to set aside for ReadyBoost to use, Microsoft recommends that you let ReadyBoost use one to three times the amount of RAM on your system.

Play your cards right: USB thumb drives aren't the only way to boost system performance -- fortunately, as USB memory sticks protruding from a computer (particularly a laptop) are easy to dislodge, and they can be a pain to remove and stow for traveling. If your PC has a reader for SD (Secure Digital) or CompactFlash cards, you can use those media in place of a USB stick to handle your ReadyBoost needs.