After the keysigning party I made use of caff to sign all those keys. But of course I needed to configure SMTP first in my development VM. There's a nice guide to getting postfix working with gmail which helped that go quickly. Just remember that gmail likes Application-specific passwords nowadays.
Oh, and another thing. GPG has awful error messages. When you receive your key signed by a third-party and you try to gpg --import it and you get the dreaded:
$ gpg --import your-signed-key.asc
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0
$ file your-signed-key.asc
your-signed-key.asc: PGP message
...remember that the key has probably been encrypted with your public key so only you can read it. The way around this is a simple:
$ gpg --decrypt your-signed-key.asc | gpg --import
Things would be mush easier if gnupg provided suggestions, but life often isn't that easy :)