Random level generation based on modular room?

Has anyone seen, or know a way to create modular rooms that can be configured at random on load?

What I mean is, there would be a starting room and then every room thereafter would be loaded and seamless but would have bee arranged at random during the load. This would allow me to prefab several rooms but introduce them at random each time creating awesome replay-ability.

I have been using a "teleport" type system in dungeons to allow for a sort of random but I really want a linear side scrolling map that looks and feels seamless.

Thank you!

You have to have a structure to your rooms to make this work, some schema for managing the borders.