I'm writing to thank all of you who have given me advice on the Lexus as I physically went to inspect the car today.
First thing I noticed was that the interior was more worn than the picture. The phone antenna was snaped off as well. The rims were 16 inches (so all you lexus heads were right! ;p) and the front and rear tires were cheapo tires, as well as unmatched; fronts are smaller than the back. There were no spacers on the wheels tho.
Under the hood, everything was pretty clean. There was an oil change as the color looked perfectly fine. Opened the cap and BAM, sludge, and quite a bit of it too! :( I reckon that it wasn't properly maintained for the sludge to wind up that high. The other fluids were also in need of change (they were all dark or at low levels).
I thanked the seller for allowing me to look it over, told him about the problems and why I'm not buying the car. He accepted them and we went merrily on our ways.
Thanks again for giving me a crash course on general maintence (pun, not intended) as there might have been a chance I would have bought this car and had headaches with future maintence. Back to the drawing board. ;)