If you have any interest in a sci-fi space sim now's the time to help out Star Citizen, a project that's the current 2nd most crowd-funded computer game of all time. 6 more days.
The short but to the point Mission Briefing video can be watched here:
http://vimeo.com/53293424 or on Youtube here:
Remember to up the quality of these videos as they're available in HD.
There are two ways to pledge:
Adding the pre-alpha peek at some simple AI behavior tests:
Star Citizen FAQ covers a few of the questions they've been receiving.
Ships Development Document provides some insight on how they're planning the spaceships to be like.
Comprehensive Stretch Goals for Kickstarter and the RSI site. Keep in mind that Star Citizen on Kickstarter also has its own goals.