I looked at both the 370 and the TT-S. I'm going with the 370 for 2 reasons: 1) The TT-S has some dissapointing turbo lag ( you may be able to correct some of this with a APR tune) and 2) 50% more money was not worth the extra car for me. Both are great cars though.

just to repeat others-
best bang for your buck: 370z
not taking price into consideration: cayman

did you consider the bigger brother of your A5, the S5? that's got the nasty v8 and looks like it could be fun to drive.

Is this to be your daily driver? If so, you'll lose your seating and luggage carrying abilities over the A5. The TT has a beautiful interior but the placement of things makes no sense (console electrical outlet at rear) and the instruments do not move with the steering wheel adjustment. The Cayman S is one I would go with: better view of the road directly in front of you and perfect balance.

Cayman S if you can afford it

TTS is a bubble, looks like a girls car

370z is amazing for its price bracket

but if the extra money is no problem for you then really buy the Cayman S, it is an amazing mid engine sports car that makes panties drop

I think the Z4 would be the best car for you.

looks good, good performance, refined (so it's not a huge jump from the A5 to the 370z) and you can clearly afford it.

if you want the cayman in the end just save up and get the GT-R

GT-R has tooooooooooooooooo many restrictions to it set by Nissan. It takes the fun out of having thecar and being able to drive it the way it should be driven.

yarp and also from what i understand the z is simply more fun to drive... GTR may be rediculously fast but z got more soul...

Sorry i'm actually quite annoyed at the GTR not even having a manual option...