I'm not a fan of the trackpad, it's alright for searching for things online but often when i type, i find the cursor always leaps and jumps about, probably cause wrists are hovering over trackpad. So i tend to use a cordless/wireless mighty mouse at any given opportunity, with a mouse present the trackpad is disabled...
dunno why people need to use a wired mouse when there's bluetooth built right into the MB & MBP...😕