Sqoon
Super Dodgeball
Megaman
Princess Tomato
These are the standouts for me from that collection... as well as the sealed stuff. Super C sealed should bring you some good money. There's a few other "popular" titles too boxed like Contra and the Zelda games, but I think the real winner as far as rarity is the boxed Sqoon.
Based on the NES stuff alone I'd say for $800 you did damn good. Had I found something like that I'd have been happy and just considered the Atari stuff a bonus, haha. Great find indeed!