Solid-state disk drives may be the future, but they haven't taken over just yet. This week, Western Digital (NASDAQ:WDC)introduced a 1.5 terabyte portable magnetic drive for laptops and a variety of other formats, a move that could make it one of the best stocks to buy now.

While Apple and even Seagate Technology have increased their bets on SSD, Western Digital is poised to profit from PC makers hesistant to introduce too many premium-priced laptops into the market.

Think specifically of Dell (UNKNOWN:UNKNOWN) and Hewlett-Packard (NYSE:HPQ), both of which offer SSD machines but whose customers are more price sensitive, says Tim Beyers of Motley Fool Rule Breakers and Motley Fool Supernova in the following video. Having access to Western Digital's higher-capacity drives should allow them to cater to budget-savvy customers that are still hungry for high performance, Tim says.

Do you agree? Please watch the video to get Tim's full take, and then let us know whether you believe Western Digital is one of the best stocks to buy now.