Just so I can start thinking, where exactly do you mean by 'the Highlands'?

I've been to a lot of sites in Scotland BTW, so if none of our Scottish Megaraks wade in, I'll be back. Kosmik Ken's right about Kilmartin (though for me a coupla days would be enough, at a push). The Clava Cairns are cool, but I'd say there are a fair number of places I'D recommend above em.

Any chance you could make it to any of the Isles? Lewis, Orkney or even (relatively near the mainland) Arran in particular?

love

Moth