I have problem with wireless(bcm43xx) and video device (ATI Radeon X700) since Ubuntu 4.10 but now with Ubuntu 7.10 my notebook works good. There are some driver that I have to download and install to activate special buttons on my notebook(acer_acpi) that I need to use wireless card.
Other device work without problem, I use my notebook with external hard drive, camera, web cam, various printer(also network printers) and all works without problems.
Bye!