I've just received a copy of the
USE ME Fantasy rules booklet by 15mm.co.uk/Alternative Armies, and I must say I'm quite satisfied with it. It is quite rules-light, using only a single 1d6 per side, and VERY easy to learn; I'd recommend it for those of you who want to introduce new people (kids included!) into wargaming.
The rules themselves were written with 15mm in mind, but they are abstract enough to fit almost any scale (just double ranges for 28mm).