I would recommend Linux if you weren't a gamer.
Security-wise, Firefox+Adblock Plus and NoScript are essential. Any decent free anti-virus is fine. I used Panda Cloud when I had a Windows install; I've heard good things about MSE.
I think µtorrent is the standard torrent program on Windows. I've always used Transmission.
Titangeek wrote:
And OpenOffice to replace Microsoft office.
Actually, I think GNOME Office is significantly better, especially given that OpenOffice's future is very uncertain right now. You can download AbiWord as a replacement to MS Word, and Gnumeric as a vastly superior alternative to Excel.
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