Hello from North central Ohio on the shores of Lake Erie, I got a 07 919 yesterday and hope I like it as much as I like my 78 kz1000 ltd. I'm 57 yrs. old and like the upright seating position of the kz. I noticed the 919 seems a little too pitched forward right now so I'll either get used to it or maybe go to a higher bar. No mods till the warranty runs out and can't wait to start putting on some miles on her.
At 45 yoa, like you I took home a F7 900 Hornet (That's what they are called in Oz) in December 08, and have just clocked 7000 km. I also liked it because it is comfortable enough for me to ride nearly all day (with a sheepskin seat cover), and can go hard enough when I feel the urge.