One of the options I would consider is a Honda S2000, unless you do not want a 2Seater. Or any of the 2Seater roadsters available depending on your preference (SLK/Z3 or M/Boxster/TT etc)
Or a Prelude/Celica/Solara/Accord Cpe/Acura RSX/Acura CL/350Z etc.
Or some very nice used sports cars(Supra/3000GT/RX7/M3/CLK/Corvette/NSX etc)
Have fun.