Cris,
If you are successful with the Geissorhiza radians, make sure you set and collect seed from them. Mine flowered themselves to death, and at the time others mentioned the same thing. In the right conditions you can virtually get seed to flowering in it's first year (a friend in WA does that easily), whereas in my conditions I find it took about 3 years. I still have some seedlings coming along that are years old, but I've never repotted them so they have never got to flowering size. They're a very striking flower when out, that is for sure.