What’s the best computer security for windows 7 professional?

I am a Canadian PC gamer and I’m planning on buying windows professional 7 (clean)
and I need some advice on what to buy for anti virus/spy ware/firewall etc etc software that’s best. I don’t mind spending the money.
Any Ideas?

IRAN: Speculation on Israeli involvement in malware computer attack – Los Angeles Times

It took Iran several months since the reports that it was hardest hit by the computer worm known as Stuxnet  but recently authorities conceded that about 30,000 IP addresses had been infected with the malware. The worm affected computers of staff at the …
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Iran struggling to contain ‘foreign-made’ ‘Stuxnet’ computer virus – Washington Post

hundreds of Iranian Web sites have also been under attack. Tehran-based engineers specializing in repairing personal computers said they had not noticed any upsurge in demands of repairs because of the virus. Computers are widely used in Iranian society,
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