Give me your opinions on this idea for a Minecraft Server?

I'm in the process of layout of plans for a Minecraft server specifically targeted to new players. My intentions is to host a safe, moderated server where new players can play Minecraft together in a relaxed none competitive environment.

The thing is though, I actually want the people who come and play on my server, to build the world themselves. I want them to make it their world that naturally and organically grows as they do. To this end, I don't intend on creating very much in the world myself. Basically I only intend on creating an interesting spawn for players to explore when they first join the server and then provide them with the tools to build their own unique part of the world.

Sort of like the early pioneers. Pretty much, what I will be doing is saying - okay, here's the space you build your home, your farm or whatever and the watch the world evolve into villages, towns and cities as time passes and players become more accomplished at building and more and more people join.

Does this sound like a good idea and would you think it was doable?

Its a good idea, and plenty of other people have done similar things

A good idea from other servers is to layout a starting spawn area with laid out plots of land around it, and allow players to claim spots of land at the spwn site. You could make this part of a walled in city, and then allow people to go out into the wilderness to explore and gather resources. It might even be possible to occasionally reset the outside world, but keep the inside safe (by using MCEdit or something similar).