Unreadable dell OS drive ... no boot
Partition magic said "too many errors"
XP ( when it's on my server as a slave ) says "Drive not formatted"

Ubuntu Linux ( "Feisty Fawn" ) ---- Live CD
( booting OS from CD and running OS totally from CD )

Bip! bam! boom !
Into the drive - recovered all data - not even a wimper!

Gotta love it - and it's free also.