Microsoft Windows Live Safety Center(http:\/\/safety.live.com\/site\/en-US\/default.htm)Provides online virus and spyware scanning; can enhance PC performance by removing junk files and optimizing your hard drive. A related service, Windows Defender, continuously monitors your computer for spyware. Both are betas. Cost: Free.Kensington PCKey (http:\/\/us.kensington.com\/html\/6331.html)Software-and-hardware product protects hard drive with 128-bit AES encryption. Unlocked only by USB key and password. Cost: $70.Microsoft Color Control Panel Applet(www.microsoft.com\/downloads)Art geeks will appreciate Vista\u2019s color management tools. Marketing department can\u2019t wait that long? Give them this color-management utility for Windows XP. Cost: Free.Axantum Software AxCrypt (http:\/\/axcrypt.axantum.com) Freeware utility integrates into Explorer and lets you encrypt any file folder with 128-bit AES encryption just by right-clicking. Cost: Free.Microsoft Alt-Tab Replacement Stardock WindowBlinds (www.windowblinds.net)Makes Windows XP \u201cskinnable,\u201d so you can redecorate your interface with any of several thousand downloadable themes\u2014including some very Vista-like looks. Cost: $20; site offers a 60-day free trial.