WHY WAIT FOR MICROSOFT?
Vista delay, schmista delay. You may not be able to upgrade to the official next version of Microsoft's Windows for months, but you don't have to wait a day to add many of the new OS's security, performance, and interface improvements to your current XP setup. And to top it off, many of these advances cost little or no money.
Vista will introduce new techniques to help speed Windows' startup and shutdown times, and to accelerate application launches. But why wait?
SystemBoosterXP claims to use a technology similar to Vista's prefetching, which anticipates the files you're likely to request next and revs up your file loading and app starts. The program sits quietly in your system tray (the area near the clock) and needs little if any configuring. You can try it for 30 days before forking over the $20 registration fee.
On the other hand...