You mean your OzzieBlackCat.com site? Honestly, I wouldn't worry about that. The odds of someone targeting you (if you mean general hacking) are low. What I do recommend is keeping at least one backup (two or three is better; your host almost surely keeps a backup for you, but you should make sure you have one or more, as well) of all the files at your site. You can Google for sites that allow you to store files on their sites for a monthly fee, if you want to go that far. The real benefit to those, for the record, is that most of them use several hard drives, so they have several backups of your site. If they get hit by a virus or something--which is unlikely, because they typically have very good security--they'll almost surely have at least one intact copy of your site. But, anyway, if you keep a copy of your files, if your site gets hacked, you can just remove any bad files (or wait for your host to handle it, if the attack is on their entire server), then upload your backup files. It really does give one a sense of security.

The other thing you can do is, since you have a domain name, you can ask your host if they have a service where they allow you to use their information for the registry, instead of your private information. Just make sure you trust your host, because according to the registry information, it will show them as the owners of your site. Theoretically, if it ever came up, you might (or might not) have a hard time proving it in court (which is why it's good to keep copies of your transactions with the company). However, if you choose to allow your own information be used for the registry, anyone can WHOIS your domain name and find out that information.