I currently have a 250GB SATA HDD enroute to Data Recovery Corp. Mostly because I was stupid, didn't have a backup and didn't make sure both power connections were NOT connected. But I received a replacement which is identical to the first.
I've had this new drive for a couple months now. But this drive decided it was going to fail and took two other drives and my motherboard with it.

I didn't know it could kill so much other stuff. The other two HDD's wont even spin up. and my mother board does not recognize anything on the Secondary and Third channels.
So I am AGAIN buying a new MB and two UDMA ATA133 HDD's.
Hopefully the data recovery won't cost a fortune as I have over 5 years of bought and downloaded stuff.
Looks like I seriously need a backup routine.