Where did all the Furla experts go?? Sorry, morning glory, I guess you're stuck with me until someone better comes along.

I'm totally NOT an expert, but I have 2 Furlas.
I have no idea about the first link you posted... I've never seen a Furla in that style. Maybe ask the seller to post pictures of the inside... might be helpful?
I'd DEFINITELY ask for more pictures of the second one. Again, I'm no expert, but it worries me a little. I'd want to see closeups of the hardware (the rings), the stitching (see how it kinda puckers on the right hand side in the first pic?), and also the inside of the bag. If it's authentic, the pictures that are currently posted don't do it justice, because the hardware and the stitching look pretty cheap, and that's not typical for a Furla in my experience.
I am a total newbie at this authentication thing, so if there are any REAL furla experts out there who want to chime in and disagree, PLEASE feel free!!!