Hi Keri,
Welcome and I am sorry to hear you have TOS. I am a TOSer also. Had surgery...scalene but not rib.
I see that CHeryl has given you the link to the TOS forum. Losts of friendly people and tons of knowledge.
THere are several threads in the TOS forum on people's surgeries. JOhanna, Mucker etc.
Where are you having your surgery done?

and Good luck! Keep us posted.