In reply to Ste_b1978: Another vote for the Hunka, dry inside at all times and very light. You might find the larger one more useful - the standard I have is barely large enough for a medium sized man and definitely not large enough to have the sleeping mat on the inside.
I also have a Rab Ridge Raider which is brilliant but quite expensive. The beauty of the Rab is that it is essentially a one man tent and mine weighs 800g without pegs and the bag, neither of which are needed out in the hills.