best way to stucture a new personal key?

[savanna]

I'm about to create a new personal key (in my realname) - just wondering
about the best way to do this... My question is not about how to do it,
but what to do.

I was thinking of creating a key under gpg with keylength 2048, no expiry, then
subkeys with 2 years (say) expiry for my different email addresses. Is
this the best way?

Also, which public key do I get signed at keysigning parties - my main
one, or a subkey?
--
Savanna                 |  Free as in 'free speech',
GnuPG Pub Key E40FAE08  |  not 'free beer'.