I've seen from a few sources that Schwarzeneggers shades in T2 were Oakleys. I definitely think they aren't. Does anyone know what they actually are>

Yeah, I saw that a while back, too. I'm pretty sure there's no Oakleys in T2 when I checked, at least not on the main actors. I think most of them may be Matsudas.

Arnie wore Gargoyles in T1,
Persols in T2.

I'm sort of a 'Terminator' freak too.

FYI, apparently these are the screen used pair for T2, and it's 'Ultimate Optics By Pacific Eyes 2012' according to this auction.

http://www.liveauctioneers.com/item/5966146

Thats funny, I swore the T-1000 stepped on them after that guard punched arnie in the face and broke them. Then he took them off and was running toward the elevator being chased by the T-1000.

Although I can't account for the wordy description on the inside of the arms, the picture does indeed look like a pair of Persols.

Persol Ratti 58230, is the correct name and model number to be exact. They're still advertised as Schwarzenegger's T2 sunglasses all over the internet.