I've seen Pat Healy fight before. He's had a couple of fights in the WEC. He's a boxer, loves to throw em. He has some submissions too. His younger brother Ryan also fights in the WEC.
I saw Forrest Petz fight in KOTC and at GFC. He's a really solid WW. Has good striking and has pretty good submissions. He should be a welcome addition to the UFC WW division.
Don't know anything about Anthony Torres really. Jake O'Brien I saw fight once at WEC also, he KO'd some can in like 10 seconds. It was a quick ass match. Don't really know enough about him to judge.