Just an FYI - USB Overdrive was able to make the mouse feel more "Windows-like" for me. This was the biggest annoyance I've had since getting my new Mac Pro and figured others were probably having the same issues...
And there's a trial version!
http://www.usboverdrive.com/USBOverdrive/News.html
And there's a trial version!
http://www.usboverdrive.com/USBOverdrive/News.html