Hi
Neil McNicol. It's nice having you with us on the forums here.
A noteworthy Anti-virus (among the many favorites here) is called ESET. In fact, I just updated our NOD 32 Version to 8 on our own Windows 7 SP 1!
There just happens to be a Free Giveaway
for just this AV you can enter here
Who knows? You might just be one of the lucky winners for a whole year!
I just came from entering myself!
..and in the meantime, you can read all about it and even download a 30 day trial.
Either way,
You get to decide!
Thanks for sharing you configuration with us. Oh!
..just one more thing (besides some of the great advice our member/friends have already imparted)
there is a free extension we use at my home that securely encrypts your password, protecting against key loggers, and particularly increasing the safety of any monetary transaction you conduct while online.
It's called LastPass.