I have Vista Ultimate 64 bit installed.
I have read that 64 bit is more secure than
32 bit, but that Microsoft still recommends
the use of  antivirus software.

I noticed that some antivirus vendors offer
either an antivirus package, or an internet
security package with more features.

With all the improvements in Vista, I wonder
if I need to get more than just an Antivirus package ?
Are Vista's security tools any good ?
If I get an internet security package will it just
needlessly overlap (or disable) the tools that
Vista has already provided ?
Please help me to understand what product I need
to get.

Thanks
Mike