thanks for the suggestions.
It does sound like the aquaflite 'oceanliner' option is similar to the old gold core. I'll look into that. I'm not sure what 'skin in' means and googling only leads to thin dive skins.
Granted, I don't think the mention of 'titanium' from other wetsuit brands means that type of smooth reflective quick drying liner material to which i'm referring. I'm pretty sure thats just a marketing gimmick.
Tim: Yes this is for winter here in Bermuda, though I'd prefer to avoid the bulk and especially the expense of a tropical dry suit. I do already own a 7mm neoprene dry suit from my days in the Northeast US - slight overkill here though. Thanks for the thought.
Any other suggestions on suits (with special liners) that say warm topside would be much appreciated.