In reply to ollykeeling:
There is only Alien rock, and Alien rock 2. Alien rock 2 being only bouldering and Alien 1 being mostly leading and a tiny bit of bouldering.
Ratho is a 15min drive out of town, and is the best leading wall in the country, if not the world. The bouldering is very average. Its cold in winter, and warm in summer.
Not much else in the way of decent outdoor climbing nearby. An hour away you get places like Dumbarton and Dunkeld, and such like. Northumberland is an 1 and a half away.
Anything else you need to know?