WANTED: Car on $3k budget

I'm a Stanford medical student looking for a reliable, compact car with good mpg. Additionally, the following would be preferred:

• Less than 100k miles
• Automatic transmission
• No major mechanical defects and/or repairs necessary (i.e transmission, timing belt, etc.)
• 2010 tags/registration, passed smog
• Toyota/Honda (1997+)
• Good condition for age of car