Here's the snowglobe again, used a Catmull-Clarke division factor of 3 on the props, it made the globe a lot smoother; glass refraction set to 1.35. 2 point lights both sized up by 1000%, gain lowered to 10%.

Software: OS X 10.8 - Poser Pro 2012 SR2 - Luxrender 1.0RC3 - Pose2Lux
Hardware: iMac - 3.06 GHz Core2Duo - 12 GB RAM - ATI Radeon HD 4670 - 256 MB