Thanks to Nobel Intent who posted a link to the time lapse photo of the Mt St. Helen's eruption over the past few years (2004-2007). I loved seeing how the lava dome affected the glaciers. Just thought I would pass it on as well if you haven't seen it yet.
Time Lapse Video of Mt. St. Helen's Eruption
Looks like you need Windows Media Player to play it...
If you can't get the link to work, try directly at DEM showing dome growth and look under the header September 2004 - July 2007 DEM showing dome growth.