I've got a pair of Endura weathrepants and I'm pretty chuffed with them. So far I've only ridden them in the dry/light showers but they're quite breathable and don't steam up too much. They also fit very well without being too tight or too DH and have reinforced panels on the inside of the ankle so you don't trash them on the chainrings.
Wiggle are selling them cheap at £59.99 at the moment but be aware that the sizes seem very large, I originally ordered a large for 32" waist and it was miles too big, now got a medium and it fits great.
Also seem to remember a favourable review of them on here somewhere.