In reply to Matt250:
I wouldn't go hardshell for touring unless it's in really grim Alaskan weather. In the past I would have echoed Si's choice of Patagonia BC Guide, but the newer version has too much hardshell and is too baggy, In fact, I think they have discontinued it. They have this:
http://www.patagonia.com/product/mens-dual-point-alpine-pants-for-alpine-cl...
I've got Haglofs RnadoFlex which work well - small vents, but since they're very breathable you don't get too hot. Can wear them with nothing on hot days, thin base layer, thick base layer etc.
Your full zip hardshell will work too - plenty of my friends go for that (don't forget to put sun cream on your legs!!), I just prefer the added breathability and lower cost of softshells - especially non-branded material!