If you want to know what Ohlins front and rear suspension would cost you, look at the Daytona675, Triumph now has a R version of the Daytona with Ohlins front/rear and Brembo monoblocs. Want a perfect trackday bike...look no further
(or get the RSV4 APRC
The normal Street is nice bike, suspension is on the soft side but main problem is the rear shock. Get the normal Striple and find some shock on fleabay...loads of them around.
The Speed? The 2011 should be real improvement. The 'old' one was not for me, reach to the bars to long, compared to the Street. Top heavy feeling.
Ride them all and make your choice, that's what I did.