1) for torrent i recommend rtorrent [text bases, but it's the best]
2) might use it with wine or linux emulation, you can use xpdf to read pdf files
3) you can have vlc and/or mplayer (with or without gui)....
4) I use mplayer in slave mode to listen to iradio, also watch movies, and listen mp3
5)You can use it, also got many more mailers.... see
http://daemonforums.org/showthread.php?t=1345
6) we got OpenOffice and friends
7) can you sky with QT-static and linux emulation (skype will be very ugly... and might crash), i stay away from it
8) you can use it