Thanks a lot for You reply, sulu. I'm convinced, that slow start of LXDE is due to WICD sh*t starting, despite that I've literally purged everything that had wicd in package name, same for network-manager and it's dependencies. Still, I get prompts and errors mentioned earlier, on every LXDE start: wicd asking for password wicd complaining about inability to connect to d-bus wicd complaining about it's interface being disabled finally, ugly pop-up saying that i'm not connected... Other than that, and chromium problem, there isn't anything else wrong.
The following extra packages will be installed: python-glade2 python-wicd wicd wicd-daemon wicd-gtk wireless-tools The following packages will be REMOVED: network-manager network-manager-gnome The following NEW packages will be installed: python-glade2 python-wicd wicd wicd-daemon wicd-gtk wireless-tools Need to get 591 kB of archives. After this operation, 6,661 kB disk space will be freed.
Errors were encountered while processing: network-manager network-manager-gnome
The following packages have been kept back: alsa-utils aqualung chromium-browser chromium-browser-l10n gnome-alsamixer gstreamer0.10-pulseaudio libasound2 libasound2-plugins libpulse-mainloop-glib0 libpulse0 openjdk-6-jre pavucontrol pavumeter pulseaudio pulseaudio-esound-compat pulseaudio-module-x11 pulseaudio-utils
apt-get install --no-install-recommends iceweasel