How about the Vaja case?
http://www1.vajacases.com/home_en.html
I use a Covertec at the moment for my 600. Love it but I don't see one yet for the 650. I'm sure it's in the works.
http://www.mobileplanet.com/private/...01&unit=H.T600
What do you mean about a docking station?
This:
http://web.palmone.com/products/temp...0022&cat=20018
Bottom line is buy the 650, you won't regret it!:D