My developer is trying to persuade me to move to .net from PHP.

I have always disliked the idea because of the costs.
But he's tryiong none the less. I've been using Movable-type on numerous websites for about a year and 
am nervous about switching to another platform. I have heard fantastic things about blogengine.net.
Is there a way I can import all my wordpress posts into it?

Any help would be really appreciated!