Not only is that map Midnightrider provided a great one but the whole site it is part of is the best one I've seen on the Arenal area.
http://www.arenal.net is on a very similar same level as
http://www.monteverdeinfo.com for those of you familiar with that website. In fact, I think they were put together by the same webmaster. I've been using Arenal.net for previous trips to the Arenal area and actually booked my stay at Los Lagos through them for my last trip.
I never noticed Fuego Arenal before and think I might check it out next time I go to Arenal. It certainly is nice enough for little old me if I'm there solo and even with a date it is probably nice enough. Maybe it is not as "romantic" as Tabacon, but one should remember most of these gals are not used to anything fancy anyway. For them a $50 hotel room is luxurious. I love Tabacon as much as the next guy but their prices are climbing through the roof.
Another thing I've noticed for some time and really comes out when you click on any of the area hotels on that map is how much the hotel rates in that area in general have been going up. As I've said elsewhere the first place I stayed at in that area 6 years ago has gone up at least 50% in price since I stayed there. Tabacon seems to go up in price every few months. And it is hard to find a room (outside of La Fortuna itself) for much less than $100/nt. Its gotten as bad around Arenal as it has been around Manuel Antonio. Again, Fuego Arenal seems to be the sole exception for hotels outside of La Fortuna.
Finally, the last thing I noticed from looking at the latest map are all the other new things to see and do in that area that were not on that map at the beginning of the year: SkyTrek/SkyTram, Hanging Bridges, Paraiso Canopy Tour and PureTrek Canyoning. I'd love to hear reports from anyone that has been on any of those, particularly on the canyoning one, something I've been interested in for a long time.