If you have a mid-2010 iMac, Apple has just released the iMac Hard Drive Firmware Update 1.0 to resolve a problem that might prevent your iMac from booting properly. Although there’s no way to know if you really need this update or not, the inability to boot could make installing this update in the future significantly more difficult, so I’d recommend doing it now, after making sure you have a current backup. (Free, 767 KB)
Option-Click AirPort Menu for Network Details
If you hold down the Option key while clicking the AirPort menu in Mac OS X 10.5 Leopard, you'll see not just the names of nearby Wi-Fi networks, but additional details about the selected network. Details include the MAC address of the network, the channel used by the base station, the signal strength (a negative number; the closer to zero it is, the stronger the signal), and the transmit rate in megabits per second showing actual network throughput. If you hover the cursor over the name of a network to which you're not connected, a little yellow pop-up shows the signal strength and type of encryption.
iMac Hard Drive Firmware Update 1.0
Check out the perks at <http://tidbits.com/member_benefits.html>
Special thanks to Michael May, George Hogeman, Phill, and Yoshimasa
Sekiya for their generous support!