In reply to ajtgraves:
If it's of any use to you I have the "Berghaus Ignite Hoody" and personally think it's really good.
I use it to wear while belaying at the bottom of the crag, normally layered on top of something but that's mainly because when I take it off to climb I don't want to get all cold. It'd probably be warm enough to wear with just a decent base layer underneath.
The type of climbing I do is trad, normally in Spring, Summer & Autumn but if there's a good winter day for some craging I'll normally be out then too.
It does pack down pretty small but does still take up space, considering how warm its kept me, even in the win & moderate rain I'd say it's pretty small. Never used it in heavy rain.
Also it zips up from the bottom which is really handy I find for having over a harness then opening the bottom up a little to make belaying easier.