With my Ultramarines Thunderhawk complete, I immediately decided to pull it from the list, replacing it with a Warhound titan.(thank you FW for adding this to all imperial armies!) My model is not equipped with a str D weapon, and isn't even fully painted. However, I like the look of it so much I just had to add it. At 2000 points, the titan makes up 720 points of the army. I don't now how hard these guys are to bring down, but with such a large amounts of points locked up in one model maybe D weapons make sense. The army has only 4 weak troops, and a terminator squad to protect the titan. The two fliers exist to provide air cover.
If you replace my captain with Tigurious, add Coteaz with some inexpensive troops, I think this army could be competitive, and would look right for an imperial force.