So as an Ex Wizard owner I can answer my own question
I took the plunge and upgraded to the Hermes (HTC TyTn)
Off the bat I was pleased to see a major speed boost in general UI related tasks.
Also noticed that the speaker on the back of the Hermes is way louder than the 2 on the wizard. On more than a few occasions I near fell of my chair when the sexy bird bellowed "Master I have mail for you"
I have had to re profile my Phone Alarm settings by dropping the volume by 50%
Also Bluetooth is even better on the TyTn. My SE IV-835 headset seems louder than before. On the Wizard each time I would answer a call the calling party would complain about an ear piercing screech coming from my side as I pressed the call answer button on the headset. That is also gone now.
The only negative aspects of my upgrade are.
I had to get yet another type of memory card and the OS is not as stable as what I was used to on the wizard.
This is where the hard work done by all the "Brains" at XDA shines through
Its only when you are forced to use a Operator released ROM that you realize how poor they are compared to our XDA cooked Roms.
I'm running the latest 2.05 htc ROM and have had a few lock ups. I have also had some crashes with my nav software (HandyMap AI Gold) which I have never had on my previous devices.
The other niggle is with the D-Pad, it is too cramped. I never know when I try to press the enter button whether or not Ill actually get it. Maybe its something I will get used to. On the wizard you could press this button without looking at it but not so on the Hermes. With all the "free space" on the section bellow the screen I wonder why they squished all the buttons so close together.
So all in all I am happy with my upgrade, and once the XDA Roms start to filter through I will be ecstatic about my upgrade
Thanks to all who replied here.
Jules