I've been fiddling around with this is the recent past and wondered if anybody here knew anything about it?
If not:
Tile System is an easy to use (and supposedly very customisable) tile based map making utility. I've fiddled around with the Space Hulk and some recent D&D dungeon crawlers (Castle Ravenloft and Ashlardon or something!) and I must say it's very, very good!
Now I've also got a HeroQuest based one but it is, how shall I say this, not very refined. A lot of scanning has been done but the sizes are all over the place, and don't agree to the snap to grid feature, whereas the others seem a perfect snug fit. It's really annoying!!!!
Now I could have a go at scanning some in but to be honest I don't have the time or the breadth of tiles that would make a good/excellent version. I'm wondering if anyone has jpegs of some AHQ, HQ, WHQ, Mighty Warriors, and other tiles already scanned that could be resized and therefore a much better Tileset created.
If you're interested Google TileSystem Space Hulk and you should go to the WarSeer forums where you can download it. Don't worry it is totally legit, it's a brilliant fan made tool (although the scanning of the tiles may be somewhat extra-legal.