IT Support W1 London

Well over the last few months its been pretty crappy, slow read/write speeds, weird clicky noises coming frmo my Samsung Spinpoint 500gb HDD. today i went to reset my pc and when it loaded back on, just said Hard drive error.

Since i dualboot vista with linux ubuntu i had grub on there. It loads up grub and tells me to chose my option, but the vista/windows and all the linux options do the same thing (for about 5 seconds theres just this . flashing then it says something like Unknown string hard drive error or something.

I swapped the HDD with an older 640gb WD hard drive,that gave a different error and just said HARD DRIVE FAILURE PLEASE INSERT SYSTEM DISK

But then again, im pretty sure the 640GB was broken to begin with, so i didn’t expect that to work.

Cant use an old IDE hdd because i only have 1 IDE slot on my mobo, which is being used by my dvd drive (and i dont have any usb cd readers)

help?? this is probably the first time i dont know what to do, usually i always manage something but now im out of options cant get another HDD for awhile. (yes i tried another sata data & power cable.)