I just bought a 2003 GS300 with 14,000 miles and paid 29,500, it was 31,100.00 out the door with all tax, tags, etc. I have not found one for less that 33,500 yet even on eBay with comparable mileage and equipment.
Check the NADA.com and kelly blue book and then come to a no compromise price in your own head.
Also, a carfax search can keep you out of trouble. I found the previous owners name and phone number in the glove box and gave them a call just to check out the condition when they sold it.
Comaprison shpooing is the real key to purchasing any car. Make them sweat and call you back; don't appear too eager. :whistles: There are loads of great cars out there so go slow.
Dr. D