Attached Link: http://www.renderosity.com/viewed.ez?galleryid=481292

SDL, try also setting the light to infinite, this extends the visible portion of the light beyond the actual object. A second issue is to increase the light quality in the materials editor or you may end up with artifacts in your light rays. Try to keep it under 65% though as thsdi really nails you in the rendertime. One issue to watch for is the tendency in bryce for light leakage with volume visible. This can be an issue with a larger light shining throug a smaller openning. A forth consideration is to have the light rays against (visually) a dark background. The attached link is my "A place in the sun" image.

Pass no temptation lightly by, for one never knows when it may pass again!