Silverlight : Which language? (help a nublet)

[LightningCrash]

I'm needing to make a GUI app for a space game, and I figured, hey, Silverlight.

It would basically be a zoomable (Google maps style) map with an overhead of a starmap. You could click on your fleet and right-click on a star system within range to send the fleet there.
I had a crude mockup in Pygame, but decided I wanted it in-browser.

Currently I only know Python, PHP, Awk, Bash, and some bits of Perl.
I am not opposed to learning a new language if it would make the project easier overall.

I know IronPython is out there, is this worth bothering with? Should I just pick up C# and be done with it?

I'm also open to IDE suggestions. I have a Windows7 VM fired up and currently have VS 2008 Express installed. Is there anything else worth a crap for these?

Thanks,
-LC

 

[extide]

Well, if you want to do silverlight then C# is the most common language, and Visual Studio 2008 rules the roost for sure.