"The Lusitania Controversies" Vol 1+2 (2 is better IMO) by Gary Gentile (the first guy to penetrate the Doria and one of the most famous divers in the world); good reading.
Clearly, the Doria is still a tough dive, even by today's standards, but, I really don't have any problem with people talking about wanting to dive it at some point in their carreer, even if they have little experince. I know some people that have done her(including my PADI instructor), my feeling is that if you are TRIMIX certified and have a couple hundred dives at similar depths under similar circumstances, you in good physcial/mental condition, and you don't mind long boat rides in bad seas, the Doria can be a fun, safe dive.
Like I said earlier, if there's anything left of her when I'm ready to do a dive like that, hell ya I want to dive the famous luxury liner that sank off my home state and, even today, remains one of the most famous wrecks in the world.