Even if you have only a modest software collection, finding and downloading updaters from the Web can take hours. Insider Software's UpdateAgent scans your hard drive and checks your commercial software, shareware, and system files against its online database. Within minutes, the program displays a list of available updaters; pick the ones you want, and UpdateAgent downloads them to your computer, ready for you to install. A one-time, one-Mac update costs $10; a one-year subscription, $50. For $90, you can purchase an edition for stand-alone and networked Macs that includes 1.3GB of updaters on CD-ROM; $250 buys four CD-ROM editions, released quarterly.