He He, I see that Mark and I are working at the same time cross posting.

I don't know the specifics of what he's done but I'll stab that it's similar to what I've done.

This is a simple sphere with a little bit of red in the color, a little bit of red in the transparency (mostly transparent though), and a little bit of red in the glow.

I put the filament in the middle so you could see that there's something inside and that it's quite transparent.

There's also a red bulb light in the middle with the falloff set to 100% and a distance which I liked. Soft shadows are jacked up.  Still not sure if this is what you're after but it sounds like it.

Oh yeah and there's a little reflection in the sphere too.

-Kix