I would absolutely get the extended warranty. I got one, as stated before, on my '05 CPO 5yrs/125k, through the lexus dealer. Get the carfax report with the vehicle. My car was sold to the dealer at an auction, but at 19k and records can't ask too much else. The car is in amazing shape, still had the new car smell. I'm young too, only 24, so I don't want to invest a lot into a car right now and I'd much prefer one that is hassle free. I plan to keep mine for longer than the warranty. To me regular maintenance is a must. Oil changes etc they will add up. But once you've paid for the car and its still clocking miles at 300k+ it will be worth every penny. Until someone hits you and totals it, as is the case on my '93. (sorry still angry about it)
I only mention the air susp cause I'm just curious to see how the ride differs and as always just want more of the lexus goodness. I do realize that down the road they are expensive to repair and I've only heard troubles about them. I wonder how the newer gens are, 07-08 on air ride. (the feel) I do enjoy the look of the sport package and I know that compromises the ride even with air susp. So much for curiousness though. I'm very delighted with my non-air susp.