Via Aqua do some nice tanks which fall into the size range you're looking for.
Not as clean & neat looking buy waaaaay way cheaper.
The
Via Aqua LV-418W &
Via Aqua LV-468 are on special at Hidden Reef right now ($70 for tank & light I think)
I'm tempted by the 418w which includes a 2x18w light as I used to have one a few years back which served me very well.
Go get it before I do!
Pic of LV-418W with standard light
Pic of tank with Arcadia 4x24w over-tank luminaire.
.