Macroscopic GFP visualization

Hello all,

While this question is not directly related to flow cytometry, I am hoping that
the collective experience of the group may be able to help us come up with a
solution.  We are using tissues from transgenic GFP mice transplanted into
non-GFP sisters, and wish to visualize any cellular metastises that occur.  The
commercially available illumination sources are relatively expensive (>$2000),
so we are looking to construct our own light source, probably with either LED's
or filters attached to a halogen light source.	Any comments/suggestions or
alternatives would be greatly appreciated.

Thank you for your assistance,

Brian Sullivan
Vincent Center for Reproductive Biology
Massachusetts General Hospital
(617)726-8865
btsullivan@partners.org