Thank you Chris!
I kind of figured that was the case based on how little information I could find on Norton 360 for a Mac...I did end up just renewing the basic Norton for Mac software I had since the subscription was running out. I couldn't get it through TechSoup since our type of non-profit did not qualify for Norton purchases, or something like that.
I did also find info on the ClamXav app when researching my options, but decided against it for now since I didn't know enough about it. May go with that next year though, thanks. I am essentially just trying to be a safe, good computer user, as you said, and protect my Mac since I would be lost if it did get attacked by a virus, even though I do understand that Macs rarely do...sort of a better safe than sorry perspective I suppose.
The other piece I really wanted was backup, since that's even more important to me and my design files and such are making it nearly impossible to do manual backups on flash drives as I had been doing. I found Mozy through a post or article on here, though, and am very happy with it so far, though it does take a long time to run the backup.
Again, thanks!