That's a bit of a bummer about the SATA adapters, but I did just buy a PCI-E card that will provide a dedicated IDE adapater. Sounds like it's similar to that SiI-680, so perhaps that will "trick" it (???). I'll post my results if it works.
Also, I got the suggestion to use CDRWIN for some DC dumping from tossEAC (or rather from a guide he sent me). I have pablogm123's suggestions as well, so I was simply going to run both and see which one worked best. However, I ran into the same issue with CDRWIN not seeing my drive, so I wondered if there was something related to the SATA drivers.
Sounds like the myth is certainly "Plausible"...
ATAPI iHBS212 2 HL05 (+6) | LG BH16NS40 (+6) | Plextor PX-W4824TA (+98) | Plextor PX-708A (+30)