I have used one of their HDD enclosures, the plastic was cheap, but the electronics / functions are solid. I would be more concerned about buying from (J&R) a retailer I trust.
There is also a deal in todays Best Buy flyer, 1 GB PNY sd card, after instant savings, $29.99, regular $69.99. That seems like a pretty good deal to me. I bought the Sandisk one form staples last Xmas for $35.00.