Hey there BigPink,
I played the model you're looking at for a while, and liked it fine until I got a Yamaha P80 which I think is much better. It has a nicer action in your hands; the key depression depth is more like an acoustic piano, whereas the Clavinova was a little shallow-- it felt more like an electric instrument.
The sound on both is great (I'm a big Yamaha fan, acoustic or digital) but the P80 is less expensive and portable. That matters to me because I love being able to carry my piano to pub gigs instead of using whatever big ol' outa-tune clunker that's there. I can also keep it in the back room of my house where I do most of my practicing, or move it into the livingroom for a party. The Clavinova is way too heavy to move (at least for me.)
The downside about the P80 is that you need an external speaker. This allows it to be portable, but adds one more piece of expensive and heavy equipment to the process. I have the Yamaha MS60S Monitor Speaker, which is great for home and small gigs, and even has an additional input if you need to run a vocal mic or somebody's fiddle pickup through it. For larger gigs it works great as an on-stage monitor for the keyboard, which has a second out for the mainboard line.
Hope those opinions are helpful, it's probably more than you wanted to know... best of luck shopping for your new baby!