Been playing Left4Dead and L4D2 for about 2 years, before that Battlefield 2 for about 3 years. Looking forward to BF3.
Started gaming in about 1984 with a C64, then an Amiga, but online gaming against (or with) others for about 6 years now. Love the whole Co-op thing and teamplay.
WGT has its place, but shooters are adrenaline games.
While playing WGT, I wear the British Open 2010 cap I won last year.
When playing L4D, I wear a Thai hillman's cap my wife bought for me in Thailand (scares the hell out of 'em).
When playing Battlefield, I wear a Russian officers cap, bought in Russia when the wall went down....