Apple Remote Desktop has received updates to both the Apple Remote Desktop Client software (enabled in the Sharing pane of System Preferences) and the Apple Remote Desktop Admin application that's used to control and administer remote Macs. Most of the fixes that Apple details in the 3.3.2 updates are fairly minor, addressing incorrect reporting, improving performance when clients are controlled by RealVNC viewers, and dealing better with clients behind NAT gateways. Reliability has also been improved in a variety of situations, such as when copying via drag-and-drop (something that's always been flaky); when authenticating new client computers; and when controlling systems with dual graphics processors, dual displays, or that are using certain resolutions. ($299 new, free update, 4.21 MB client/51.41 MB admin)
Smarter Parental Controls
If you've been using the parental controls options in Mac OS X to lock your child out of using a particular computer late at night, but would like to employ a more clever technique to limit Internet access, turn to MAC address filtering on an Apple base station.
To do this, launch AirPort Utility, select your base station, and click Manual Setup. In the Access Control view, choose Time Access to turn on MAC filtering. You'll need to enter the MAC address of the particular computer, which (in 10.5 Leopard and 10.6 Snow Leopard) you can find in the Network System Preferences pane: click AirPort in the adapter list, and click Advanced. The AirPort ID is the MAC address.