Building and not worrying about having to paint a unit immediately after is fun... seriously I forgot how much fun just building models can be.
I've got my first five Iron Havocs done, and quickly too. The Betrayal at Calth and Burning of Prospero kits I got had a minimal amount of mould lines to worry about.
Here's the start of my first tactical squad. These models are actually nearly done at this point... only a few more bolters to trim and drill. Once I have two ten man units ready I'll go back and start working on bulking them up by ten more.
Working at my present capacity I should have plenty of minis assembled for Paint Phase.