With Circuit City out of the picture, Best Buy is widely assumed to be the beneficiary of most of its market share and thus several billion dollars in electronics sales per year. That won’t necessarily be the case – or at least not if Walmart gets its way. The giant retailer says it is on the course of upgrading the electronics departments in 3,500 locations to ensure they get sizeable portion of that market left up for grabs.

In a nutshell, Walmart is revamping its electronics departments with new signage and displays to create an “easy-to-find” and interactive shopping experience. It will be increasing its selection of wireless products by 30 percent, adding smartphone devices such as the Palm Pre to shelves, and will be expanding its HDTV and Blu-ray equipment as well as its movie selection. It will also offer more computers from the likes of HP, Dell and Toshiba – with an exclusive agreement to offer Dell’s Studio One 19 All-in-One touch screen desktop in June.

Other major changes include having standalone sections for popular brands such as Nintendo and Apple, and the addition of ePlay kiosks to 77 stores, through which the retail giant will rent movies and games for a dollar a day as well as offer a mechanism for consumers to trade in their played-out games for cash.