Debian :: Laptop Will Not Boot - Error Loading Journal

I have a laptop with important data (no backup) that will not boot. It's a vanilla Debian 6 amd64 with dm-crypt LUKs encryption to a internal sata drive partitioned sda1 sda2 sda5 with lvm2 formatted ext3 for sda5. The symptom is that upon powering up, it progresses (albeit slowly now) past grub, to the point where the the "Enter passphrase" prompt occurs. After entering the phrase, it pauses with "Reading all physical volumes. This may take a while". It seems to work, but then gives me errors like:

ata3.00: status: {DRDY ERR }
ata3.00: error: { UNC }
ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata3.00: BMDMA stat 0x25
ata3.00: failed command READ DMA EXT
...some more stuff...
end_request: I/O error:, dev sda, sector 308725410
JBD: Failed to read block at offset 24711
EXT3-fs: error loading journal
and it drops me to Busybox ash shell. My impression is that the sda1 partition with the kernel is intact, but the sda2 or sda5 is bad.

What else I have done:
1. Removed problem disk and installed it into another known good laptop. Issue occurs with new laptop. So, I would assume hd is bad, laptop is good.
2. Booted from hd using grub rescue mode. Similar errors occurred.
3. Using suspect laptop and hd, booted into a live cd environment, which attempted to mount the encrypted drive. It prompted for the passphrase, but said it could not mount the drive.