Bryce cost only $100, and (as of thos time) on sale for $50 at the bryce website, and thats a newer version than I used, you should be able to get Bryce 5 cheaper now that there is a 5.5
You guys need to check out Terragen , I don't have any pics up yet but they are amazing and very easy to use.Its also free for the people who don't happen to have 600 for photoshop 2 X D.