After seing animerik's hellcannon ( the guy is epic) I decided to make one too.So far I thought the hellcannon aint great but by looking back at the stone thrower rules and it's own I changed my mind.
We get:
Small blaster, Strength 5 (10 for the model under the hole), d6 wounds and no AS!
And while other armies need carefull deployment we don't cause it is a large target and can see over anything that is not!

Now couple this with the fact it can stand it's own if it has to fight an enemy and I don't see 205 pts as a bad price if you like the model (or the one you are gonna make)

What are your opinions on this and/or your suggestions on how to use it?