[X-Unix] local IMAP server?

[Michael Gmail]

Sorry for the cross-post, but I'm not getting much of a response on 
MacOSX-Talk, and I don't think this is entirely off-topic here:

I've been avoiding Entourage because I don't want all my mail in a 
proprietary database. But Entourage speaks IMAP, doesn't it? Is there 
any reason I couldn't set up a local IMAP server on my own machine, 
then store all my mail there and access it from any IMAP mail client I 
feel like using? How difficult is it? Am I overlooking anything? Can 
existing mail be imported?

Thanks,
Michael

-- 
<http://globalocal.blogspot.com/>

Are they evil or just stupid?