Sounds like you need to go to the nearest dealership with zeds and do some test drives.
She does lack the punch most cars have with their narrow power band, but that's cos she's already been pushing all the way from 2K! Personally this was something I was looking forward to, it's not that I don't like a car that has a sharp power band, but I do a lot of motorway miles and having 90% of the engines torque across the whole rev range just sounded fantastic. The other main option I was looking at (Honda S2000 was a no-go cos I wanted a hard top) was the Mazda RX8, but to make that car sing you have to pin her in the high revs. Which is also fun but the lazy grunt of the zed just appealed more.
So I've got the right car for my tastes, but it sounds like you need to get behind the wheel and sus out for your self if she's going to be right for you.
Also do some research on which year to get, both trim and engine have had a few revisions and you might find that makes a difference. The rev up 2006 engine for example has a less linear torque curve so has a more normal punch on it's power band, could be more your thing. The rev limit also changed on each revision so look into that too.
Yeah good shout, hadn't considered the different engine revisions.
thanks mate