Aha, congrats on your first post and welcome to CGTalk.
I have a bamboo touch and turned the touch off I think the most important thing is pressure sensitivity, which all those tablets you mentioned probably have, and size. I have dual monitors and the bamboo is a perfect size for them and also makes the tablet small for travel.
Depending on what apps you want to use the wacom for you may have to tune it. For instance on windows you have to disable the Aero mouse theme and a bunch of other services to get the tablet to work well with 3dsmax. That is just one case, the web will provide you with solutions on this,