I'm about to reinstall Windows, so I thought that I'd try Ubuntu out on a partition just for fun.

My question is, how large should my partitions be for each of them? I know this various depending on what you use, so i'll give you a general idea of what I have, and what I have in mind.

I'm currently running: Windows 7 Professional (64bit) RAM: 4GB CPU: 2.5Ghz Quad Core processor HDD: 500GB GPU: 1GB Nvidia GeForce

I have around 130GB in Steam games, and some heavier applications like Photoshop CS6, Sony Vegas Pro 11. But other Applications I use are:

Chrome Skype Dxtory Fraps OpenOffice BitTorrent

and other assorted smaller programs.

So, I was thinking that I would give my Windows partition about 150-200GB, my Ubuntu Partition around 20GB, and the rest to shared storage. I'm not really sure if I'd need more or less on Ubuntu, because I've never used it and I'm not really sure what kind of apps i'd be using over there.

This would also be a clean install, so I'd be wiping my HDD, creating the Partitions in GParted, then installing Windows with Ubuntu following that.

Any critique you could give me? Maybe explanations to what the /root, /boot and /home partitions I hear are about?

Thanks in advanced if you actually read this lengthy thing! Any help is appreciated. (x