i read about them in Terrorizer (Breaking Faces) and checked them out, and indeed they're not half-bad.
i'd describe them but i suck at that, so i'll just give you these links:
http://server5.hxcmp3.com/bands/1710/index.php
http://www.purevolume.com/circletakesthesquare
http://www.myspace.com/circletakesthesquare
"Crowquill", off "as the roots undo" (the only album i've heard) is quite nice, available on the first two links. the "Non-Objective Portrait of Karma" at purevolume starts off like Metallica's Battery and Damage Inc. (i.e. gay) but gets better later.
so c'mon c'mon give then a shot!