Mine:   
Mossberg 590 Mariner 
(2) Colt New Agent 1911 compact .45ACP 
Ar-15 Variant 
Hummer H1, Corvette C5. 
Move to Hocking Hills in Southern Ohio 
Get 2 Dobermans 
Build a fortress with a garage the size of my house 
Other plans that I cannot disclose   
I would probably lay low for a few weeks/months and let all the idiots run around and kill themselves. After that, I would venture outward to look for resources.   
Like Scotty, I also have a Chemical Warfare suit which helps with Nuclear, Biological and Chemical hazards.