As part of Microsoft's Virtual Earth push, Truespace, which once was around 600 bucks, is now FREE.
Need to spice up some GUIs? Then check out Truespace.
On a sadder note, I hate to see these smaller companies starting to succumb. When I first got into programming I really enjoyed using some of the smaller 3D packages out there like Poser, Bryce, Cool 3D, etc... It is a shame these companies are generally either going out of business or being bought up.