Heh - the Model 400 Peak 1 - good stove, doesn't throttle all that well - I have one <img src="/images/graemlins/smile.gif" alt="" />
As for the Seva - you know you can get a pump for them to run them in cold weather, right? My old camping buddy carried that. If I ever start camping again, I WILL get the little Seva, simply because for day hikes, the Seva is a lot lighter and smaller