The DR80 is 31.5" x 31.5"... there's lots of units that would work well for an area that big.
I've seen Excellent M357 grows, haven't seen many Apache....
Like posted above, take a look at the Pro Grows... for the price of a 357 Magnum (180 watts, $850) you could probably get more bang for your buck....
I've always wanted to try a
Haight Solid state LED panel too.... it might very well be my next purchase! Have you seen the
Solar flare LED? Been eyeing these too....
I have a
Pro-Grow and I love it, apparently the bigger ones PG260+ have more flowering diodes too....
Basically, that's a ton of money to drop on 180 watts... not sure if I'd be willing or not.