I don't doubt DocNougat, but I thought I would add that I have personally had positive experiences with Minersource.net. They actually respond to support, and as long as you are courteous, I have found they will go a long way to help you out. The Black Arrow situation is very unfortunate for everyone involved, but I have received hardware from them before, and would feel comfortable and willing to purchase from them again. That said, I'm not sure I'd be willing to pre-order ANY miner from anywhere after BFL and Black Arrow.

Edit: I'm not affiliated with minersource in any way. There's just two sides to every coin, so I thought I'd provide a positive experience.