sorry if this is yet another inane question by a newbie, but I've never moved hosts before and will probably be moving about 20 sites when I get my Hostgator account.
I'm not planning on setting up a service that will be email-heavy in general, but there will be a small handful of days every year where I will be sending out more emails than are permitted under the reseller limitations.
I have a social network which is growing and I want to move from my HG shared account to a HG dedicated server (before it gets too big and my members notice performance drop).