This is probaly a kinda dumb question but what kind of SATA cable would this (http://www.newegg.com/Product/Product.aspx?Item=N82E16827135151) use?

I'm not too knowledgeable with computers so any help is great.

This is from A Mac site but the cabling is the same. Look for the item at the bottom of the page, it combines both connectors in one cable:
http://www.macgurus.com/productpages/sata/SATACables.php
edit:
Out of stock item. Gives the idea of what to look for though.
Try 4 position to 15 cable here:
http://www.satacables.com/html/sata-power-and-signal-combo-ca.html

That's what I've been loking for. Do you know if they wuld have that in-store anywhere? Or should I just order it off of Newegg?

I don't know what retailers stock, here is one listing at Newegg:
http://www.newegg.com/Product/Product.aspx?Item=N82E16812123100

Thanks a lot.

sigh... I have another question.
I have the cord to plug it now but I realized that I don't have anywhere to plug it into. Is there a certain adapter I should get?

If you have no SATA ports on your MB, you might look at a PCI SATA controller card like this:
http://www.xpcgear.com/satacardsa1010.html
or
http://www.newegg.com/Product/Product.aspx?Item=N82E16816102062

We need more info on what your PC is equipped with, MB etc.

okay I have a KT4AV-L (MS-6712) (http://www.firingsquad.com/hw/126/MSI_KT4AV-L_MS-6712/) motherboard and a amd athlon xp processor.

No onboard SATA... You'd need an adapter card...

Are there any you recommend?

PCI Host Controller Card (http://www.newegg.com/Product/ProductReview.aspx?Item=N82E16815104219) is one way and using a USB converter cable (http://www.newegg.com/Product/Product.aspx?Item=N82E16812232002) is another.

Thanks to all who helped so much. Merry christmas!

I hope you know to install the driver for the SATA controller.