Chadnliz,
I've become a firm believer in matching the right, left and center speakers in terms of type and quality. I switched from a cone center to a planar to match my fronts and enjoy the soundtracks more than some of the movies. The speakers seem to disappear on good soundtracks. I would hold off and save up for a center that matches the excellent quality and the type of your fronts - Martin Logan? Also, you can set the center for "small" and this allows your fronts and sub to take over on the bass for center channel information.
I've become a firm believer in matching the right, left and center speakers in terms of type and quality. I switched from a cone center to a planar to match my fronts and enjoy the soundtracks more than some of the movies. The speakers seem to disappear on good soundtracks. I would hold off and save up for a center that matches the excellent quality and the type of your fronts - Martin Logan? Also, you can set the center for "small" and this allows your fronts and sub to take over on the bass for center channel information.