IDICBeer has begun work on the Forgeworld model for the Eldar Avatar. I've had my eye on that model for years now; I love everything about it. Unfortunately for me, back in the day I didn't have the money to buy it... nowadays, the current LOS rules in 40k make the model especially difficult to field, as it gives you a major disadvantage despite how awesome it looks. Fortunately for me, I get to follow along in IDICBeer's progress and live vicariously through him ;)
Garfy over at Tale of Painters has been building a Necron Tesseract Vault that looks absolutely stunning. I love following the large projects, mainly because I rarely get around to doing them myself. It's very satisfying to see it come together piece by piece like this.