Now that the nagware "USB Overdrive" driver has stopped working on 10.6, I guess it's time to ask again: is there some simple, free way to cause my middle mouse button to send Option+Left Click instead of Middle Click? (Logitech RX1000.)
Update: It turns out that USB Overdrive does still work on 10.6, it's just that the behavior changed slightly. I also use the Apple pref that swaps Opt and Cmd, and now that means that I have to tell USB Overdrive that middle-button sends Cmd+Left instead of Opt+Left. I didn't have to do that in 10.5, so I guess the order in which these things fire changed. Or something.
Anyway, I still find it absurd that I'm expected to pay extra just to remap my mouse buttons, because the OS doesn't include this basic functionality, and there's no free software to do it. It makes it feel like this OS is nickel-and-diming me over trivia.