Hey buy the sc430, it is the best convertible for the money actually on the market. An SC 300 is coming out for 04 as 2005. It is nice, less H.P but very nice :)
My dad as the Sc 430, he loves it when my mom isn't driving it. The only other anoying thing about it, apart from the tires, is the passenger seat, when no one is in it 's making al ittle noise. I have no idea where it come from and Lexus either.
Good luck :D