If you don't feel like reading the whole story just jump to the bottom of the long paragraph for the questions. OK so last night I was up late watching EyeTV on my 17" 2.0 C2D iMac, it froze and I had to do a hard shut down. When it came back up it booted from my external HD that had a clone of my MacBook HD instead of the internal HD, I restarted again and it booted from the internal. Repaired disk permissions and verified the disk and it said there was an error, shortly after that it froze again, before I got a chance to back up my iMac hard drive (I only have 1 external drive and it's the 250GB HD I use to store my 215GB clone for my MacBook) So after waiting about 15 minutes to become unstuck it did, but immediately froze again so I had to do another hard shut down, I had since disconnected the external HD from the iMac and this time when I tried to start it I got the folder with the question mark, tried 3 times and kept getting this, so I hooked up my external again and booted using the MacBook clone, it's working just fine like this and luckily I use my MacBook as my main computer and use my iMac to just basically watch eyetv/hulu and what not so I didn't lose any data except my recorded shows on eyetv (and I hadn't even watched the newly recorded episode of It's Always Sunny in Philadelphia ) So basically I'm pretty sure the internal HD on my iMac is dead, which sucks cause I was planning on selling it in January to buy a refurbished 20" iMac. So before I sell it I want to fix the internal HD. Does anyone know how much the Apple Store would charge to replace it? can I buy the HD online and give it to them to have them switch it out or would I have to buy the HD from Apple? Also right now the internal HD isn't even being detected by the SATA bus (according to system profiler) and therefore I have no way to mount it, I don't have a FW400-FW400 cord right now but does anyone think Target Disk Mode would help recover the HD or at least the recorded shows on it, or should I not even waste the money on the FW cord and just count the shows as gone and replace the internal HD?