hi!
i had some trouble to get my bamboo working too, so I’ll write down what i did, to get it work. the problem is that i am not an expert in input devices (instead i’m just a designer), so all i did was experimenting, and finally it worked.
1, i added dkukawka’s software repository (Index of /repositories/home:/dkukawka/openSUSE_11.0)
2, then installed all x11 wacom related packages, and wacom-kmp-default
3, at this point i rebooted my computer, and after the reboot the sax2 packages were updated from dkukawka’s repository. i don’t know if this update is necessary, but after it i ran Sax2 in the Tablet properties there was a new option: TABLET PCs. In that i selected Wacom ISDV4 Tablet Pc (usb). In the Electronic Pens tab check the add pen, and add eraser. (watch out, 'cause this new Sax2 resets monitor setting, so don’t forget to set them back before saving the whole thing.)
4, if i’m right, this process have rewritten your xorg.conf, so now if you check it there are sections for a wacom device. copy those sections before the mouse and touchpad sections. (i don’t know why, i read it somewhere)
5, i’ve checked out a few things:
cat /proc/bus/input/devices
in the section where your bamboo is displayed there should be a similar line: H: Handlers=mouse2 event9
now you can check if your bamboo is working by entering the following in the console in su mode:
wacdump /dev/input/event9
instead event9 you should write your own, what was in the H: Handlers
there are a lot of infos here. if everything works, than you should be happy, i was 
- finally i rechecked my xorg.conf:
Option "Device" "/dev/input/by-id/usb-Tablet_ISD-V4-event-mouse"
these lines were bugging me, 'cause they’re nothing to do with bamboo, so i checked the /dev/input/by-id directory. and there it was: “usb-Wacom_Co._Ltd._CTE-450-event-mouse”
- i replaced all the “usb-Tablet_ISD-V4-event-mouse” with “usb-Wacom_Co._Ltd._CTE-450-event-mouse”
after saving, and restarting X everything worked just fine.
i have a lenovo 300 n100 laptop, an up-to-date opensuse 11, and a bamboo fun small. i tried the linux wacom project howto, but it didn’t get me anywhere. so i hope the above will help you.