Get it here.

The 10.6.2 Update is recommended for all users running Mac OS X Snow Leopard and includes general operating system fixes that enhance the stability, compatibility, and security of your Mac, including fixes for:

• an issue that might cause your system to logout unexpectedly
• a graphics distortion in Safari Top Sites
• Spotlight search results not showing Exchange contacts
• a problem that prevented authenticating as an administrative user
• issues when using NTFS and WebDAV file servers
• the reliability of menu extras
• an issue with the 4-finger swipe gesture
• an issue that causes Mail to quit unexpectedly when setting up an Exchange server
• Address Book becoming unresponsive when editing
• a problem adding images to contacts in Address Book
• an issue that prevented opening files downloaded from the Internet
• Safari plug-in reliability
• general reliability improvements for iWork, iLife, Aperture, Final Cut Studio, MobileMe, and iDisk
• an issue that caused data to be deleted when using a guest account

For detailed information on this update, please visit this website.

As of now, all bugs are fixed, Safari crashing is fixed, no more memory spikes and Adobe programs seem to be stable now. But I suggest before updating to 10.6.2, run disc utility and do repair disk permission.