Now and finally I can say that my Ubuntu setup is PERFECT:

1. Easily connect to any wirelss network; infrastructure and ad-hoc, thanks to ndiswrapper 🙂
2. Send and receive bluetooth files as well as browse any bluetooth device using Nautilus (latest bluez-utils package from Debian)
3. All laptop shortcut keys work without any problems out of the box.
4. Great performance and memory usage.