You're going to have to leave all handguns outside the state for at least a year while you get your CCW/purchase/own/fuckYouNY license. Long guns have to be neutered... here, read this bullshit:
http://document.li/ak48
The 7 round crap has been tossed, the rest still applies. Though in the rural areas, not many fucks given, but it's still something they can tack on to, say, a speeding ticket if they see something.
So, if you have any AR's, AK's, or anything with a magazine and, well, anything useful, then you're either gonna keep it hidden, modify it, sell it, whatever. Your choice.
Vehicle registrations are 2 years, and actually cheaper than a lot of other states. I guess that's the lube they use when you get fucked with all the other taxes. Research by COUNTY if you're actually gonna move here. Property taxes can vary a lot, especially if you're in a village, or in a town.
We have an 1100sqft ranch, on .5 acres in a village, I think it's assessed at somewhere around $120k (Paid 77K for it in 2005), and our taxes are about $3000/yr.
Usually shooting on your own property is fine if you're in the rural areas. Plenty of gun clubs around too. I'm a member of 3 of them. Some are as cheap as $20 a year. Oh, and Connie's Diner is great, too.