You won't be disappointed.
If you get it modified for astrophotography (which, personally, I wouldn't do and spend the extra to get a proper dedicated CCD unit), it'd be an ideal system.
The camera has insanely good high-ISO low noise properties. Of course, the par for the course with astro-imaging is taking dark frames; taking dark frames for each object yields an even lower noise master dark frame.
I've taken a handful of images with mine.
They can be seen here:
First test image I took with it:
http://users.tpg.com.au/octane2/etacarinae.html
And, more complete renditions:
http://members.optusnet.com.au/mrozy...s_Cluster.html
http://members.optusnet.com.au/mrozy...ke_Nebula.html
http://members.optusnet.com.au/mrozy...rk_Doodad.html
If you intend to use it for terrestrial purposes, have a look through the terrestrial image forum here where I've posted a lot of images.
H