Recently purchased a 2004 SC430 - black with saddle - 157k. Have wanted one since 2002 when I saw one in the showroom. Long story short, I located one in Texas and after speaking with the owner, decided it was a worth making a deal. While waiting for the car to arrive in Colorado, I signed up for Lexus Owners Club and read as much as I could about the strengths and weaknesses of the car. All I can say is LOC is a fantastic resource for any Lexus owner, but I found it particularly valuable for my newly acquired SC. So far, I have replaced front and rear shocks/struts, both upstream O2 sensors, front brakes and rotors. Within the next month I will replace water pump, tensioners and timing belt. (previous owner did it around 95k) All repairs have been done based on recommendations and information obtained from LOC forums. The suggestions for aftermarket parts were invaluable - as were the recommendations for OEM parts. Repairs were accomplished by a local independent Toyota mechanic I have known for awhile. Cosmetically - the car is in very nice condition. It was garaged most of the time and it shows.
Bottom line is a HUGE thank you to all the other SC owners for sharing your knowledge and resources on this forum. Thanks to you, I am enjoying the hell out of this car and plan to have it for many years to come. Here's a photo: