Best career choice and os to use?

Can anyone tell me the best career choice I could make and what is the best OS (for networking) and what should I say in an interview?

Also, do you like the new XP and it’s “scheme”?

I am trying to set up a TCP/IP and can you please explain subnetting in full and “addressing” such as uses four groups of three digits?

What is the best firewall to use for an education site?

Is Norton or Mcaffee the best antivirus?

How do I play “BoxWorld” on my Palm Pilot?

Do you think the best supervisor is a technician or a supervisor without technical background?

Does Microsoft suck?

Thank you in advance.