Just looked at Portland Craigslist (and saw three bikes in my size at good prices, which helps you not at all).
Here's three I'd look at:
A Giant Iguana($125)--welded, not lugged, but has good components (Shimano Alivio); it's a mountain bike.
http://portland.craigslist.org/mlt/bik/3036793201.html
A Trek Antelope ($195)--again, a welded-chromoly mountain bike with Alivio components.
http://portland.craigslist.org/mlt/bik/3055345428.html
If you want a road bike, this might be a good deal--it's an off-brand, but probably worth looking at if you really want a road bike.
http://portland.craigslist.org/mlt/bik/3064594329.html
Relative to Richmond prices, it looks like road bikes are relatively expensive vs mountain bikes.