My developer is trying to convince 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 very good things about blogengine.net.
Is there a way I can transfer all my wordpress content 
into it? Any help would be greatly appreciated!