In my opinion the SC 430 is the best all around choice you can make for the price. I came out of a Porsche 911 and a year later in the SC I have no complaints at all. Just finished a 1500 mile trip to Florida. 9 hours in the seat gave me a great ride, good tunes and in total comfort.
Reliability has been first rate and same with the dealer in fixing tire problems recently.
You do not see many of these due to the production volume of 7000 units per year. My SC draws stares and raves everytime it is out.
Buy it and you will be happy. Suggest you buy one from a Lexus dealer just for the added insurance that it has been taken care of and ask to see a nationwide printout of the service of the car. The lead Tech told me these engines will last for 300,000 miles without any major refurb.
Derek.