I'm actually getting a job (as a photographer!) and instead of paying off some of my student loans I will first be getting a new lens, but which one? I'm considering the Sigma 50mm f/1.4 EX DG HSM, Sigma 30mm f/1.4 EX DC HSM, or waiting for the Nikon 50mm f/1.4 af-s. On my 18-55 I'm at 30mm most of the time, so I personally feel like that would be a good choice, but I'd be fine shooting at 50mm if the lens is better. Now the other thing is that this wont really be a moneymaking lens for me, just a fun walk-around, so I was also considering the Lensbaby Composer+Optics. I've never used a Lensbaby, but they look like so much fun, and I love the effect. There are times when I wish I had a fast prime, but for simple snapshot shooting when I want a shallow DOF I almost feel like the Lensbaby would suffice. What's Macrumors' choice?