Hey All

I want to make a fixed gear bike to ride as a banger on campus next semester. The campus commute generally wears on my Allez, so I wanted to save it some hurt by buying and old frame on the cheap and converting it. I've been browsing Craigslist for a while now, and I've come by some frames that fit my size and price range. I was thinking that I could post the links here and I could get some feedback on what frames are A-OK and what frames aren't. Basically all I'm going to do to the frame at this time is strip it and add a flip-flop wheelset. I also love riding fixed gear so here we go:

Cannondale of unknown make and model:
(dropouts look vertical?)
http://hudsonvalley.craigslist.org/bik/3180259785.html

Miyata 112:
(No pictures on link =/)
http://hudsonvalley.craigslist.org/bik/3165945757.html

Miyata Pro:
http://binghamton.craigslist.org/bik/3200987752.html

Trek 1000:
(No pictures on link =/)
http://hudsonvalley.craigslist.org/bik/3197804644.html

Univega Arrow Pace:
http://hudsonvalley.craigslist.org/bik/3132379758.html

What to you guys think about these frames?