Mazda RX-8 with Lambo Doors

I have officially begun car-shopping again.  The fact that I got stuck at the dry-cleaners for 10 minutes on Saturday which made Ben and I late to our brunch with Benjie and Alan at Cecil’s … was just too much.  I love the Neon, but its days are numbered and its time to consider new options.  That being said, do I go with a reasonable and affordable cash-for-clunkers option like a Ford Focus or Toyota Prius?  Or do I have a bit more fun and enjoy a car that I should never really consider getting, but have nothing holding me back from (yet).  Mustang Convertible?  RX-8?  BMW?