I'm sorry I am sure you guys get this a lot, I'm not newb to forums and using the search feature but truly I am new enough to this scene that I don't even really know what to punch into the search to find what I'm looking for yet.

Basically, I want to build a simple, inexpensive bike for cruising to and from campus this year. I'm talking a craigslist cheapie frame/complete score for a base to build off of, and then go from there making it a single speed, like to keep costs to a minimum. This is my first foray into single speed stuff (my brother is huge in DH and my dad rides DH and XC quite a bit), its much simpler to just get a bike to ride around, but I like building stuff.

5'10" tall, ~150 pounds, just wondering what I should be searching on craigslist in terms of models/frames to look at, given the inexpensive factor I'm sure I'm looking at older stuff. I was seeing a lot of schwinn Varsitys on CL (i'm in the bay area) for less than $100, but then I came across a thread or two on here suggesting not to start with that frame for a SS/fixie conversion. Just trying to get an idea of what frame models the experts would recommend for my first SS build. If I love it, I'm sure I will step up to some more expensive, purpose built stuff in the future.

Thanks