Yeah. Saw 3 starts off where 2 ended. They're all connected. And holy fucking shit is this movie gory. I swear, they just went extremely over the top on some parts to make it even more disgusting. I donno. It was pretty good I guess. The storyline makes you keep guessing. They set it up perfectly for a Saw 4, too.
HoH, not really. I'd wait till it came out on video. I ended up paying $20 for my girlfriend and I to go see it. ($4 bottle of water - WHAT THE FUCK!?)