Where is my Minecraft world saved in Ubuntu?

I'm attempting to transfer my minecraft survival world to my new computer and I have a few questions regarding this. First, is it possible to transfer a world that is on two separate OS's (from linux ubuntu to windows 7). If so, I'm having trouble locating the file on ubuntu. And lastly, once I have (or rather if perhaps) the file on my windows OS where and how would I go about placing it so it would be playable?

Cheap Windows 8 pc tablet?

I'm looking for a Cheap windows 8 Pc tablet, Hopefully one that i can replace my laptop with [So it will need to be able to have a attachable keyboard And a usb or two] And it needs to have a wacom pen and built in digitizer.[and bigger the 8"]

Also if there's one where i can get my minecraft, Sims, And photoshop would be great.
I think the highest i can go would be £ 500

Thank you!

Added (1). Troubleshooter-Trev I'm not 'Too lazy' the nearest shop is like 20 miles away.

Husband obsessed with Yogscast?

My husband is completely obsessed with the Yogscast on youtube, it's all he ever watches. He'll wake up and watch a couple of videos before he gets up for working, waking me up in the process then he'll watch it from when he gets home till he falls asleep with it on. He'll take a break to eat and to watch Game of Thrones and that is it. It's got to the point where we'll be laying in bed and he'll turn on Yogscast, turn his back on me and fall asleep watching it.

I don't mind him enjoying minecraft or liking their channels, and I understand that there are a hell of a lot things he could be obsessed with so in a way I'm grateful it's this but, it's starting to get annoying. I've spent the last three nights on the sofa because he refuses to wear headphones in bed and I won't be able to get to sleep.

I tried talking to him about it and he got angry, saying that I just didn't want him to have something for himself, that he could enjoy without me. That's not the case… I just want to be able to cuddle up in bed with my husband and get a good nights sleep.

What do I do?

Cracked minecraft 1.7.2 pc link please?

I'm going to buy minecraft soon when i can afford it so for now i wanna try a full singleplayer cracked minecraft, dosent have to be with multiplayer so can someone give me a link with no surveys, virus and all that bad stuff please?

How much GB of internet does it take to download minecraft?

I'm wondering how much GB of internet it takes to download minecraft because i have a monthly limit of 20GB and i know minecraft went through a lot of updates so i hope its not to high

thanks for reading

Added (1). Thanks everyone now i have my answer and i will now get minecraft.
can't wait haha

How important are these parts for a gaming computer?

Since I don't have a whole lot of money right now, I'm buying new parts for my PC bit by bit. My PC is pretty decent for now considering what I play (diablo 3, wow, lol, minecraft). The problem being, it lags sometimes. Even on minecraft. It's not all the time, just in certain places and on occasion, just randomly. I.E. On minecraft, it begins to lag when I enter the nether, it's also lagged a bit but then gone back to normal a few times when on multiplayer. On diablo it lags when I enter the Nephalem Rifts in Adventure Mode when online.

The other games play really well, with a 45fps average on LoL.

So anyway, what are the most important parts in a list? Also, if you can tell from this, what am I most likely to benefit from mostly?

Processor, Graphics Card, Memory.