500gb xbox one enough or not?

So i want to buy me a cbox one white 500gb. I plan on having gta 5, bf4 and hardline, minecraft, fifa16, all the halo games 1234 and 5. And is it possible to buy extra memory and how does it work?

How much should I sell my Xbox 360 for? - 1

I want to upgrade to Xbox One and I'm planning on EBay. I plan to sell it in a buddle. This is what I have;

360 Slim 4gb used but in good condition with all cords and black controller.

360 Cameo controller new slightly used

beach XL1 wired mic new slightly used

V brand new

Ghosts

2

3

4

Hawk Ride brand new

Hawk brand new

Hawk boards 2/ both for each game

I'm planning on selling it all for 200$-300$ on eBay. What do you guys think?

Will the games I currently have downloaded to my Xbox 360 transfer to my Xbox One?

I've done a lot of research on it recently, but I just want to be sure. Some people say there's no compatibility for games. Others say there will be soon. Others are claiming that Gold members get to try out the preview, which makes little sense to me. All I want to know is if Skyrim and Minecraft, games downloaded onto my Xbox 360, will transfer over with my account. If it will, is there anything else I have to do after I transfer my account to get them? If it won't, do I have to buy the games again? Or will a patch of sorts be coming out to fix this?

Will my son get the Xbox One update added to his Xbox 360 map?

My son has an Xbox 360 minecraft edition and he wants an Xbox One for Christmas.

The problem is that he has a map that he spend lots of time building (it's in
survival) and he is wondering when he will transfer the map will he get all the updates that are on Xbox One added to his world. E.g will his world become bigger.

Minecraft update on Xbox One?

Minecraft always seems to be getting updates, so I have a few questions…
1. If I actually bought the disc, do I still get to update my Minecraft?

2. Do updates cost money?

3. And can I still go on servers on Xbox 1 live?

How to put 360 games on Xbox One?

I got an xbox one and I want to put minecraft and pvz Garden Warfare on it. I don't want to rebuy them.Is there a way to put Xbox 360 games that are available on Xbox one on the Xbox one?(Basically what I mean is garden warfare can be bought on Xbox one and 360. Not backgrounds compatibility.Is there a way to put that digital copy on the Xbox one and play it(NOT BACKGROUND COMPATIBILITY.