Installing Extra Hard Drives

I am looking into installing another hard disk, to have more room available.
I have this model already installed, and I want to get another one, and I'll gete similar one so I know it's going to be compatible.

Now the original one is mounted vertically, so I guess that any HD can be?

At least the one I am going to add in the case?

What do you think of this deal?

Any better ideas?

Thanks!

 

Why don't you get an external HDD
A seagate 500 g.b is like 100$

 

I don't want clutter and I need the USB outlets.

 

Well I guess that new mother boards are coming with many HDD ports so get a new hard disk and add to that extra port. Booting will go with the one which you have right now. Also if you would like to have a usb HDD then an option to carry your matter will increase.

 

Can I install it vertically? Is it going to work properly?
And what do you think of the above deals? Are they good or could I find better ones?

Thanks!