only just seen your post, I will certainly make a list, although it may not be until well after the weekend as I have alot stacked up to do.
I have only just started looking at Dukes, I recently bought a P06 'Coloured painting' style and my most recent arrival was a Model 960 'Crane' style, I think it is the same as the one reviewed some years back: http://www.fountainp...892-duke-crane/ . I also have another 960 on order with a 'Zebra' cap. Peyton Street pens have the 960 'Crane' currently for $16. Jewelrymathematics has them for a couple of dollars less on eBay. The 960 is fairly unexceptional, apart from the cap. The nib is a size smaller than the 911's, but still very smooth and acceptable. The P06 was less impressive in real life than in the pictures, it has a similar nib to the 960.
Peyton have a whole page of Dukes, with 2 versions of the 911, plain black and with a mother of pearl band. They have some nice pictures of the 911 and offer a fine italic grind of the nib as an option. As I mentioned, my green 911 (from China) already had a nib with slight stub/cursive character which is really nice. Their more expensive Duke examples have 14k nibs.
They also include 3 of one 'filigree' style of a Picasso "a company nominally associated with Duke. "
The hisnibs.com website also has a number of Dukes on offer, but the 911 for $65 seems a bit optimistic, though it could be argued that that price more closely reflects a retail price of pens of this quality.
The blue shark 911 is becoming a real favourite. Capped, it reminds me alot of the Waterman Carene, obviously very different pens and nibs with the cap off and when writing, but in the feel, weight and finish of the capped pen, they seem very similar. At least, this is how I remember the Carene, I haven't used mine for ages so I must dig it out and compare directly.