In reply to stevebarratt:
As has been mentioned, the fully overpacked FL is 45 liters, reg. size is 30 or so. It's also a lightweight alpine climbing bag instead of a craggin' bag.
The Creek is true to the size (so larger) and I think pretty nice. But other options exist so think what you really want (capasity, how long approaches and how technica etc.).
BD Creek, haulbag or one of the numerous craggin' bags are all suited for generic craggin' stuff. But the your indevidual requirements make some option better than others.
That being said, I'l list what I have and use (end their limitation).
Grivel 60l Haulbag. Robust as hell, not the best one to carry, but super easy to pack (just chuck everything in, in Ikea bags or on a sling). Fits easily a hudge rack, 70m single, a bunch of shoes, harnesses and two lids (basically everything needed to climb for 2 persons, so if only one person gear, add some food & clothing).
BlueIce Octopus (old model, ~45 liters). Quite nice to carry and fits the full sport climbing stuff for a single person, plus grub & water. And take to rope out, to carry sport climbing gear for 2 persons plus some grub & clothing. Also pretty much airplane carry-own sized, so used on trips where flying is part of the way gettin' there.
BD Pipedream (~45 liters, perhaps a tad bigger). Nice one to carry and super nice/easy to pack. About the same actual capacity as the 60 liter haul bag (perhaps a hair less, but bigged than the Octopus). Bonus is the thin pad... nice to sit on during winter craggin' (that is ice & mixed climbing) and during summer it can also be used to pad the difficult start of a route (not as good as a proper pad, but certainly better than nothing). Also super good to change diapers for babies (and for them to sleep/nap on).