Haven't actually been there so caveat emptor on my advice but I recently cancelled a trip: here is a link I was referred to:

http://www.centrair.jp/en/

Train info:
http://www.centrair.jp/en/access/ac-to-train/index.html

I was going to stay here:

http://www1.hilton.com/en_US/hi/hote...hotel/index.do

Didn't plan on doing the train. You say "lot's of baggage" and for me that means no thank you on taking the train. I usually call the hotel I am staying at and arrange for them to send a car if I have a lot of bags.