Welcome. I am a Mac and PC user. More PC since that's what I started using first. Just got my used iBook in September, so I don't have a bunch of exposure with Macs still. It kinda depends on what you want to use the computer with. Gaming is obviously for Windows, while picture editing and stuff like that may be better on the Mac. I do video editing and I prefer my PC b/c for one, Sony Vegas doesn't support Macs, and two, my PC is faster anyway. If i ever buy another Mac, it will be another notebook to use basically just for internet on the go. My desktops will always be Windows machines.
For me, there isn't enough viruses for Macs to bother getting an AntiVirus program. I know viruses are out there, but I don't visit too many risky sites, so I just try my luck.
Amen to that, I've never seen such peculiar welcomes, enough to put a newbie off, listen to T-MAN, ha ha, he's sure proof that there are sane members at Computer Forums.
Welcome to the best site, MacGirl, glad you found us after your search through other "lesser" sites it's real cool!