I have heard a lot about butterfly labs not delivering on time, however I have also heard that they have finally started some shipments with their products. I was wondering would the 5 gh/s one on their website (listed at $274.00) be worth it, and what is a conservative estimate on its arrival time? Seems like a good deal to me, if you could get your hands on it and get it working, but thats what I'm worried about.