ibook G4 possible bad hard drive help.

I have an ibook G4 14" 1.45GHZ PPC and it has been acting odd for quiet some time. At one point I downloaded a program called citrix and from that point on I was getting Kernal panics and it would not even let me load up. I heard something moving inside and blew in it, seemed to boot the computer fully then a kernal panic would appear.

Anyway, after all of this fussing around it booted long enough to get me into target disk and decided to install leopard and it failed within two minutes. I got mad and decided wipe the hard drive clean, as I was doing this, it wiped clean then it was unable to partition. I tried several other things over a couple of days of letting it run. Eventual I gave up and turned it off, now it will not turn on at all.

There is no chime for the start up. Is this normal for a fried hard drive? I know the hard drive is done, but I want to know if it is worth buying a new one to put in. I also am curious if this is a logic board problem. I was having issues with it booting up, but no picture. This was all during the kernal panic time.

Ideally I would like to buy a new hard drive, install it and have it work. Any suggestions would be greatly appreciated.
Thank you.

Thank you for the fast reply. I tried to reformat and reinstall, but it would not even let me try. It crapped out super fast. It is screwed now.

What is a UMD?

I dont mind that it is out of date. My mom would like it to surf the internet and use word. Just something portable for her to do some simple tasks. I am also curious where the cheapest place would be to get a new/ use HDD in Canada.