linux is free, there are no 'in the wild' virus's for linux, its more secure, its more configurable, its less resource hungry, its faster than windows on less powerful hardware,
once you learn the basics its easier than windows
if you want a program for windows you have to search the 'net, download it, hope it doesn't contain a virus, pay for it or get a pirate copy, risk getting caught and fined, etc
if you want a program in linux, just open the software manager and look through the sections for which program you want and enable it - there are hundreds (if not more) of pieces of software for my version of linux
use a virtual machine to try linux, it won't mess with your win7
http://www.virtualbox.org/
try this linux chooser
http://www.zegeniestudios.net/ldc/
linux is an operating system, same as windows is an operating system,
the hardest part is learning how to use a new program,
my 7 year old daughter uses pclinuxos, how hard can it be ?
people say free = rubbish, i say they are brain dead,
linux frees up the power of your pc, it gives you freedom to do what you want and faster,
linux is how computers should be, owned by you and used by you,
it also saves you money, i have no need to go out and buy a quad core cpu, new mobo, umpteen gigs of ram, and all the rest - i havn't found a pc faster than mine yet and i only have a measly 2gb ddr2 ram and a p4 single core prescott 3.4 UNDERclocked to 2.6 and its still fast as a march rabbit,
transcode and burn an .avi in less than 20 mins, while listening to mp3's and surfing the 'net and still using less than 40% cpu with no slow down at all - go on, try it
but its your choice
and my weapon of choice is mandriva, have a look through these vids
http://www.youtube.com/results?search_query=mandriva+compiz&aq=f