That Sophos looks quite good,

Just wondering is it possible to copy the shadow file of the Linux partition to a windows disk edit it by assigning a new MD5 hash and overwriting the original. In theory i believe that should work....

Anything except for Norton, Kaspersky has always been rated high. In last months Hakin9 magazine they rated quickheal as a good AV programme (Inida's top AV scanner) would anyone with experience...

In order to develop a good overall knowledge in Network Security, just keep reading everything you can, get as much technical experience as is humanly possible (the De-ICE disks help for beginners)...