I'm going to do my best to convert from Win to Mac and just got my first yesterday - Macbook Pro i7 750gb 8g 13" at the Greensboro Apple store - really a sleek looking machine. Course, I don't know what I'm doing yet. I forgot to as them about a virus program - if it comes with one I haven't seen it. Avast work on Mac? Also, is there a built-in program like Win Paint? If not, a free one around? Thx !