Thanks for all the info so far. I have received a few PMs already about possible stoves, and I realized I should have put a bit more info on where this second stove would go.
The basement office is what used to be called a 'summer kitchen'. That is, it has a rather large stone and brick fireplace (48"W x 33"H x 24"D), which was used 100+ years ago when you wouldn't want to cook in your normal kitchens on July days. Since then I have added a 36-foot, 6" SS liner, currently connected to the laborious wood stove.
Point of all this extra info is I can not easily fit anything other than a rather short stoker due to the 33" height limit, unless I park out in front of the existing fireplace, and I would rather not kill any more floor space. Ideally I am looking for something where I can tuck the back half of it into the fireplace threshold. I guess it also makes some hopper-loaders out of the question depending on where it is located. Most of the true fierplace inserts that I have seen tend to be pretty big, which would be overkill in terms of heat and $$$. And I do not really like that 'sealed' look anyway - I want to be able to see the whole stove!
Anyway, should have added this to start - if it jogs any further info, much appreciated.