I've got a HP G60 Laptop with a hard disk that recently went belly up. It's not the greatest laptop but I think that I'd rather replace the Hard disk than look for a new laptop. I've read up on how to do it and it seems like a fairly simple procedure (I worked in a manufacturing plant that built computer like devices) but I don't know what hard drive I need/want. Any suggestions on what to look for?

I was running Windows 7 if that makes a difference.