I finally saw Terminator 3 last night. I had heard mixed reviews of it when it first came out, and I was not expecting anything more than a decent action movie. I was pleasantly surprised. I thought that it was very well incorporated into the greater timeline of the series.
Looking up some trivia online, though, people can’t seem to decide what the model number of the Schwarzenegger Terminators are. I’ve seen “T-101”, “T-800”, and “T-801”. The proper series number is “T-800”. Although the HTML is terrible, eterminator.com has a great reference on the Terminator models, taking information from all three movies, the T2-3D ride, and all of the novel-ifications.