migrating from thunderbird to mutt?

[Nikolas Britton]

Need some advice here...

I would like to change my mail client from thunderbird to a text based 
client so I can email from anywhere using just ssh (don't like "web 
based" clients, too slow). I would like to try mutt being that it's a 
very popular text client but I have many questions about it. so can 
someone at least point me in the right direction(s) (faqs, docs, 
how-to's, anything)...

How do I get my old email (from thunderbird, mbox?) into mutt?

Can mutt handle um like 5+ email address and have them all separated and 
be able to send from diffrent email accounts?

If I remember right mutt is just a mail reader, so how do I get mail to 
and sent from mutt?

How does it handle hyperlinks, if I select something will it open up in 
firefox or whatever?

Message filtering, for example I have all the different freebsd mailing 
lists automatically put into different folders, and junk mail sorting?

Speell check?

How do I set the thing up, config file help?

I have more questions, I just can't think of them at the moment.