New guy looking for sled info

Hi, just found this forum. Buddy of mine wants us to get sleds and ride this winter. We are in central MN and a trail goes right by our neighborhood. I need a bunch of advice. I haven't been on a snowmobile in 30 years. I've been riding bikes and ATVs for quite some time, but no sleds. Looking to spend around $4,000, but have no idea what to buy. Please educate me. Don't want to kill myself, but want to be able to keep up.

Thanks in advance,
Kevin

New guy looking for sled info