Opinion on this table saw

I'm fairly new to woodworking but would like to own a tablesaw. These are some options I've found. I'd appreciate it if someone who knows more than me could take a look and see what you think of them.

http://stlouis.craigslist.org/tls/5194249967.html My favorite. Please don't be a jerk and buy this because I posted it.

http://stlouis.craigslist.org/tls/5141768032.html This seems very sturdy.

http://stlouis.craigslist.org/tls/5173919136.html More expensive and I don't know if I have the space

Brand new option http://www.amazon.com/gp/product/B000HXT2N6

Other option http://stlouis.craigslist.org/tls/5166505435.html