no virus's in linux, read here
http://linuxmafia.com/~rick/faq/index.php?page=virus
so no need for antivirus and antispyware
a comparison of windows v linux
http://en.wikipedia.org/wiki/Comparison_of_Windows_and_Linux
there is no 32bit memory issue with linux - i run 32bit linux with 8gb memory,
i also run a single core p4 3.4 ghz UNDERclocked to 2.6 ghz,
i have a totally free system that does everything windows can - and more, without the need to upgrade any hardware,
i do not need to search the web and download software - all the software i could ever need is in my software manager - all free and legal
i can rip a dvd in 10 mins, i can burn a dvd in less than 5 mins, i can transcode a 2 hour film in about 30 mins - i can do all that at the same time with no system slowdown,
there is also the small thing called compiz-fusion
http://www.youtube.com/watch?v=wgVirz72bvo
http://www.youtube.com/watch?v=E4Fbk52Mk1w
personaly, i have an animated skydome, animated aquarium sphere and 4 desktops with their own animation,
my pc is a full multi-media center, with full remote control (voice activated and controlled)
all free - and i own it, its mine
windows users do not own windows, they only lease a licence to use it