Securemart.com: Is it reputable?

My Maxtor drive is making this demonic voice, and I think it is on its last legs. Therefore, I am looking at buying a new hard drive. I am looking at the LaCie d2 Quadra, and found this place called securemart.com that sells this kind of drive at a low price. I would like know if this place is reputable.

BBB's California Bureau gives this place an A grade (AAA is the highest), and PriceGrabber, out of the 1075 ratings it has for the place, gives this place a 4.32 rating.