It's been a while since I last updated, but I haven't given up on the siege campaign. With only the last scenario to play, I have a few final units and bits of siege equipment to get painted before I can play. The final assault is a pretty big scenario with 3,000 points of attackers taking on 1500 points of defenders across the full length of the fortress.
On a related subject, I am not the only one who has been working his way through a siege campaign. Tom of Tom's Toy Soldiers has also been playing a campaign with dwarfs (naturally) versus Greenskins. He very kindly put a link to my campaign on his blog, so I thought it was only fair that I do the same.
Here's the link
You can compare how the Greenskins did versus Chaos in some of the same scenarios, plus take a look at some scenarios I haven't played.