1) XFCE
3) Nautalis
4) FF
5) nmap, wireshark, ettercap, netcat, aircrack, airsnort (don't use anything else frequently)
6) Google Documents
7) Very minimal, but good hardware support without having to go looking for the drivers myself is a huge deal for me
8) 7, but I do not like linux distros to come with GUIs, etc. as it is much more efficient to configure them yourself and you get what you want ^_^
9) VLC
10) (I'm assuming you mean PC game) Trickster Online