Todayís deals from DealNN include price breaks on portable hard drives, iPhone speaker systems, and more. Macmall.com has recently lowered the cost of the refurbished Western Digital My Passport Essential SE 750GB USB 2.0 Portable Hard Drive, which includes transfer speeds up to 480Mbps, built-in WD SmartWare technology, and a 90 day warranty. Currently, this particular hard drive is featured at DealNN and has dropped in price from $129.99 down to $64.99.