Here is a mod guide on modding/taking apart a Pro Mouse. I may have mispoke about pressure tabs, but they were the epoxy joints (they feel the same when you are cutting them).

Link :: Pro Mouse Dissasembly
MacBook 2GHz Intel Core 2 Duo w/ 2GB DDR2 RAM & 120GB SATA 5400RPM HDD
Canon Rebel XTI
Google Cr-48 Beta Laptop