My Wifi keeps going in and out a lot lately on my Snow Leopard 10.6.8 Macbook. Mac virus or malware or not possible? Macs based on BSD isn't it? Whats the chances it's Virus/Malware related?

Do you recommend a certain Anti-virus or Anti-spyware for Mac, or you don't believe that my Wireless going out frequently has anything to do with that? Something else possibly like a software issue?

Your wireless issues don't have anything to do with malware. There's no known Mac malware that behaves that way. See my Mac Malware Guide for more info about that topic.
Are you having problems will all wireless networks, or just one? (If you haven't tried it on more than your home network, try taking it to a local coffee shop or library that offers free wifi and test it there.) When it "goes out," what exactly happens?

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