Well, crap, I guess I spoke too soon.
My Dh just called me and told me that one of our good friends (who helps us out TONS) has a wedding that he has to attend on the 25th. He was asking when our party was since he really wants to be there...
DH and I are going to discuss moving the party to the 18th (two Saturdays before Halloween) so he can attend. If it was ANYONE else asking... NO WAY.
DH wasn't too keen on the idea of November 1st, even though I explained about the day of the dead stuff... I kind of feel the same way as Haunted Host; me personally I like the build up to the big day.
So we're kind of up in the air now as far as the date.