I've been wearing these mid-weight boots from EMS since last spring. (Well, while hiking anyway) It looks like they are on-sale at their online site.
http://www.ems.com/catalog/product_detail_square.jsp?PRODUCT%3C%3Eprd_id=845524442587393&FOLDER%3C%3Efolder_id=2534374302875400&bmUID=1174700403186

Still, you really need to try several boots on to decide, I was lucky to have an EMS store close enough to try on EMS, Vasque, Merrill, and a couple others. I like these because they are wearable when it is warm since they breathe, but, you can walk through some wet stuff and not soak your foot. With a little heavier sock, you can wear them in colder weather as well. I did a weekend in January in them. Mostly in a prepared area though, no heavy snow or ice to contend with. You'd want some Sorels for that. The original post didn't seem to make it sound like cold was an issue anyway.

Incidentally, the tread on these boots is probably one of the most versatile I have ever had. You seem to get great sticky footing whether it's on wet logs, packed soil, mud, smooth rocks, or vegetation. I'm not really sure how they design these things, but, this is a good one.