My Juki TL98Q has a bit more space, a 9" throat I believe, and just does a straight stitch, and does it WONDERFULLY! It has been replaced by a newer model now, but very similar.
http://www.sewingmachinesplus.com/jukitl2010q-asgsm.php
I LOVE, LOVE, LOVE this machine for both piecing and FMQing!!! And it runs just under $1000.