[aj2007]

Hey guys,
I'm from SoCal and I'm wanting to get a Boxster soon. Are these deals too good to be true?
http://www.autotrader.com/fyc/searchresults.jsp?num_records=25&search_lang=&page_location=findacar%3A%3Aispsearchform&search_type=both&distance=25&address=90069&marketZipError=false&style_flag=1&make=POR&model=BOXSTE&make2=&start_year=1981&end_year=2008&min_price=&max_price=20000&transmission=Automatic&engine=&drive=&doors=&fuel=&max_mileage=&color=&keywords_display=&sort_type=priceASC&body_code=0&certified=&advanced=y&default_sort=priceASC&awsp=false&keywordsrep=&keywordsfyc=&systime=1195683440593
They have five Boxsters listed under 16k. Would these ones still be okay or is something probably wrong with them? I want to get opinions from the guys and gals who know these cars the best. What would you say your avg mpg is also? Also please don't slam me but I am getting a automatic. In SoCal traffic you need it.