I just got the 9700 10 days ago and have arranged to send it back today. I'm 6'3" and am blessed with "shovels" too - the keyboards too small for me comparatively!!! I didn't get used to it - in 10 days.
My other gripe - on the 9700 you get threaded SMS (same as BBM), and I hate it!
Stick with your 9000, the 9700 is a fine phone - there's no doubt but if you like the big keyboard stick with the 9000 - the OS's aren't that different + you'll probably be able to upgrade the OS on your 9000 soon anyway I suspect - although I won't be.
I'm not a 9700 hater but I just prefer the 9000. Including the trackball over the pad - which incidentally was broken on my first 9700(it kept pulling to the left, the 2nd 9700 was fine in fairness) - I've had 2 in those 10 days.
Ask again if you want anymore thoughts.