Thanks, Neo.
I had a look at it and that is even better than what I needed. I now have a good sense of how many "Scale" clicks it takes to get the right size.
What I was doing before this was constnatly going back and forth between Sculptris and Milkshape to confirm the scale. I'll post something up once I get something I'm more proud of.
When I first started using this, I thought there was no way you could properly make a low-poly model suitable for a game with this application,
But, I've found that It's fairly easy to keep the polies down so long as you continually use the removal brush in between adding details.
But yeah, I love this application. It's such a fresh breath of air from what I'm used to. It's more fun..