In reply to James Paul Robinson:
I recommend going to a shop with a wide selection and rifling through them all.
I have a montane Medusa. It's definitely worth a look.
Pros: Lightweight, good looking (I think), climbable in (because it's not a rigid back), good feature set. Soft back material if you are carrying it bareskin or with a down jacket (less likely to wear/damage).
Cons: Requires more care packing than rigid back rucksacks. You can't just dump a rack in it and it be comfortable. Put the weight close to your back and the side compression should be used if not full(obvious but on most packs I dont bother).
It's usually snaffled by my girlfriend and I'm forced to carry the (lighter) rope bag which is weird.
We also have a battered old Berghaus. It's still a really good sack, it's a similar weight but with more back support (awkward to climb in but easier to dump gear in. Also 32L but feels around 8L bigger). Don't know if they still make an equivalent.