Sally_Stitts - 7:33 am on Feb 16, 2010 (gmt 0)

But probably it's better than nothing.

Yeah, I'll even go for a 10% improvement.

"GeoIP DB" - I think that is the magic word I was looking for.

I will email my host about the ease of implementation of this DB. This certainly sounds like the best approach if it can be easily and reliably implemented, with no real cost. Both of which I am totally ignorant of.
EDIT - I found a site with all the perfect info. I know I can't link to it, but with some concentrated Google searching, it will pop up. I now know the buzzwords I needed, and app names, to be able to talk to my ISP with some understanding.
Two of the modules are -
- Blocking unwanted countries
- Allowing only specified countries

I think I like #2 even better. Let's see. (alphabetical, for fairness)

1-Australia
2-Canada
3-Ireland
4-New Zealand
5-UK
6-USA

Done!