Seagate 750 GB external Hard Drive Broken-ish.

Not sure what to do at this point, but I know that sending it to get fixed will cost way too much. Anyone know of anything I can do to fix it myself? I know it's in the front part of the HD, if that helps, and whenever I plug it in, it makes an odd beeping noise.

Is there anything I can do without opening it up, and if not, does the top cover of the HD itself have to be screwed in for it to work properly?

 

The beeping noise is coming from the hard drive or from the computer? I assume from the HD, and that is not good news... >_>
Usually sounds coming from hard disks are warning messages to what is gonna follow... a fried hd. There's a video in youtube or metacafe about sounds from broken hard drives, watch it if you want. (Sorry can't get you a link now).
Let's forget this for now though.
The sound is coming from the disk that is spinning inside the hard drive, because there's either something in the way, o

r because perhaps the disk has moved from its position. I myself never opened up a hard drive, and I am not sure how sensitive they are in operations like these. So if you want to try and fix you'll have to be extra careful, you might damage it even worse.
I'm not sure what other options there are.