Need Game Cache

Hi all. I need some sort of trigger(s) to create a game cache for campaign, wich stores:
1. Hero's level
2. Hero's abilities
3. Hero's items
(its all basic, but someone gave me just thing that stored heros)

Or if somewhere exists game cache tutorial, plz tell. Otherwise put it here
Thank You

I belive Store Unit does save the items and abilities............

I didn't read through this tutorial, but it sounds good from reviews.

http://www.wc3campaigns.com/thread_view.php?t=63292