Planning out a minifig scale dreadnought in Lego Digital Designer. Eventually (assuming I can figure out the minor details and make it suitably evil looking) this will be Karess - one of the nine assassins sent to take out Saint Sabbat in Sabbat Martyr.
The weapons are meant to be a plasma cannon and a heavy bolter. The bolter should have a dangling ammo feed, but I haven't figured out a decent was to model one at this scale yet.
Later: View the improved version!
I'm currently engaged in an extremely nerdy project to make Lego models of the Tanith First and Only from Dan Abnett's Gaunt's Ghosts series. Yeah, this is gonna end well ;)