Installing a secondary HDD

I'm down to 700MB on my primary 80GB HDD, so I went out and bought a secondary drive...

The prick at the store flat-out refused to install it for me though, so I'm stuck. I could wait for the end of the weekend to get it installed professionally, but I've just got DSL so I'm pretty anxious to start downloading things.

Can someone guide me through this? I know virtually next to nothing when it comes to hardware, and every site I've been to hasn't dumbed it down enough for me to understand.

>>1
Free up space by getting rid of shit like screensavers, window themes, PDFs, etc., useless shit people download.

set jumpers, turn off pc, open case, put it in, secure with screws, connect cables, close case, turn on pc, create and format partition(s), done

Letting someone else do it for you is really a waste of money. Google for details.

>>2

Already done, most of the files I have are work-related so I can't easily remove them.

>>3

The cable I was given doesn't fit in the back of the HDD... I think I'm just going to have to wait for a friend to help me out sometime next week, I can't tell what I'm doing. Thanks anyway.

>>4
Who game you the cable?

>>4
Owned by SATA lol.

go to a computer hardware store. there are two different types of connectors for harddrives: IDE and SATA. IDE are the big, wide grey cables, while SATA is just a few wires. SATA also has its own power port acsociated with it. If the ports on the back of your harddrive are wide, and have a shitload of pins in them, youve got IDE. If it looks vaugely like a USB connection(is a box with a thing sticking out of the middle), its SATA. You'll have to get the appropriate connectors. Fry's, for instance i know has them. you will probably need to get a power cable converter, that is, from the 4-wire power cables you see everywhere, to the SATA power cable. Look at your mother board to see what goes where, and what you should get. Bring int he harddrive to the store so you can show the people there.

ffs they sold you the wrong kind of HDD
If your motherboard only supports IDE change the HDD for an IDE version. then just put the HDDs on "cable select" and use a modern IDE cable that sais MASTER and SLAVE on the two plugs. then you do not even have to configure shit.
If your old HDD doesnt have cable select just let it be on MASTER, in other words: you do not have to change the jumpers.

If your Motherboard supports SATA just get a SATA cable and plug it in.

and before any discussions arise:
They WILL exchange that HDD and cable cause it is not fucking possible to sell a guy with an IDE only mobo a SATA HDD and then not take it back, except you live in some third world service country with wild west laws and stores with no fair dealing habits.