I've always loved the idea of a canoe, but always thought you had to kneel in it to paddle. This put me off as i am extremely (dysfunctionally to an extent) inflexible and find it difficult kneeling for any amount of time. But from some of the pics comments here it would appear you can have seats....?
I tend to chop and change, according to the conditions and how numb my feet and legs get! I prefer to kneel, heeled over in similar fashion to Rich (Shewie) This is my favourite position in my favourite boat: Nova Craft SP3,(though sadly,not mine) kneeling in front of the carrying thwart and actually paddling backwards! (makes no difference as the boat is symmetrical)

The increase, in both speed and maneuverability of the boat, is quite significant when heeled over like this.
This is me in my Mad River, Reflection 15 last Sunday, paddling Ullswater with Shewie (who took the picture


I'd moved to the stern seat, after kneeling for an hour or so. I always carry a decent sized drybag/holdall with my spare kit etc in it and this makes an excellent weight for trimming the boat to suit my paddling position and changing weather condition's.
You can also paddle standing up if you need or want to!
[video=youtube;jTx9Yjh4fTg]http://www.youtube.com/watch?v=jTx9Yjh4fTg[/video]
Handy for taking a look at the water ahead of you on a river, or for poling shallow water or in my case, usually just to stretch my legs and un-knot my lower back! This was Ullswater a few years ago now, in my Red SP3, the best boat I've ever paddled but far too heavy for me to manage to car top etc on my own. I really love the SP3, it really is the best polythene boat you can buy in my opinion, a brilliant all rounder, excellent quality and just about bomb proof!

The idea of a dedicated open boat meet, sometime next year is something that I might well be interested in myself. It would depend on when and where for me.
Cheers
Steve