From IFA to retailers' shelves, Dell's XPS 14z has finally completed its marketplace destiny. The 14-inch Windows 7 laptop we recently reviewed as a sensible buy is now up on the company's site in three configurations, with the base model starting at $1,000. For your money, you can choose from a Core i5-2430M or Core i7-2640M processor, DDR3 SDRAM expandable to 8GB, up to 750GB of storage, an Intel HD Graphics 3000 or NVIDIA