I agree that is was shameful that Lexus omitted this from the car. I was told that the IS300 part couldnt be fitted to my 200 so I made other enquiries, I admit I took a cheaper direction but the end result was the same. I ordered a console from D&W in Germany that fits a Toyota (they only come in 3 "shapes and sizes") It has a Leather arm rest, and simply fits over the existing center consol. It sits on the top of the existing stoage box behind the hand brake and is secured by 4 screws. The whole thing took 10 mins to fix and looks great even though I say so my self. It cost £70 with the shipping and arrived within a week of ordering!! I have no problems with the hand brake and its exactly the right height for the gear stick.
Great for that cruising feeling.