In reply to Andy Mountains: Talk about sucker - I have Back Country Guides and Base Jumps
(But I always buy secondhand)
Both great but the BC Guides are burlier (maybe apart from the waterproof patches which aren't as tough as the base jump patches) but definitely warmer and more water resistant than the base jumps. Base jumps come in 834 size combinations, so sizing is definitely a plus with them. No real venting on the BJs, but they are thinner anyway, and no built in gaiters.
Patagonia mixmasters look good for a one layer solution if you don't like wearing thermals - you can get them for about £65 plus p&p from the states.
Never tried the Berghaus jorasse but they look good on paper - vents, braces, crampon patches and mini gaiters tick all the boxes.