I'm crying a bit on the inside because I can feel my wallet getting significantly lighter. I've got almost a grand saved so I can buy whatever I want of the range (they all look AMAZING), but I have learned from experience (my Black Templars) that buying all kinds of stuff without painting it is bad. Still, I'll probably spend a crap load of money.
Based on claims from people who have supposedly seen the full codex, its ridiculously good. The complete bane of all things Space Marines. We'll see how this effects my Black Templars army, but if its true, it'll shake up the metagame a bit and that's a good thing. :)