Apple has updated the combo updater for Mac OS X Server 10.6.3. Although Apple provided no details on what was changed, the only users who need to consider installing it are those who updated from Mac OS X Server 10.6.0 using the 1.0 version of the Mac OS X Server 10.6.3 Combo Update, build 10D573 (in other words, someone reinstalling Snow Leopard Server from scratch and then updating to 10.6.3 in one step). The combo updater is available via the Apple Support Downloads page, and will be presented by Software Update to those reinstalling Snow Leopard Server from scratch. (Free, 897.32 MB)
Find Wi-Fi Networks with VirusBarrier X6
If you're in a location with multiple Wi-Fi networks, it can be hard to figure out which is the best one to connect to. VirusBarrier X6 can help - open the program's Network window to view a list of available Wi-Fi networks, complete with the name, channel, and signal strength of each.