My Computer (Harddrive I think) is making wierd sounds that it never did before...?

I think you already know there's a good chance your hard drive is on it's last leg. Back up your doents, emails address list, favorites, music, photos to a CD just in case. The link below will take you to a list of programs, some free that might give you a better idea if your hard drive is failing. I brought System Mechanic when I had the same problem, turned out to be something with an "index," it fixed it, works fine. Best of luck.