I'm first timer and I need some help

Ok, I've already got the ticket (yay!), but I've never been to US before.
I know I have to book flight ticket :->.
What date should I arrive to Miami? 31.01 or 01.02? Or even earlier to spend some time in Miami and see something? (what's worth seeing there?)
I see some party going on in Miami before the cruise - when will it start? How to get there?
Maybe some of you will be there earlier than day before? And we could meet, as I go there alone?
Another question - do you know where in Miami you can book cheap accomodation?
And where I can leave my belongings during the trip? (I plan to have many things I shouldn't bring to the ship).
I plan to stay in US for few weeks after the trip and sightseeing - maybe someone has the same idea (or did the same last year?) and want to share best way to do this (I mean low cost holiday). Is it better to rent a car or hitchhike or what?
Maybe some of you wants to join? Of course it would be better to travel with some metal fan than with random non-metal people ;-).
Or maybe someone from Poland is also going to 70000tons?
So many question, maybe some of you know at least some answers?
If you want to contact me via email, don't hesitate - suowo(at)wp.pl
Thanks in advance! See you in 5 months

Daga