I've been looking for an older bike to convert to fixed, but I'm unsure which brands of bikes are better. I think I passed up a good deal last week, older univega road bike in perfect condition for 30 bucks.

Is it possible, saying I find a decent old bike for around 100 to have functioning fixed for 200 or so?

My first buy was a slight bust, but it's working out alright for an entry road bike.

Any advice on finding older bikes, brands, things to look for, etc?

thanks.