My three-year old Dell is running on Windows ME and I've been thinking about switching to XP. Full version of XP Home is about 180.00 through Dell. Is there a less expensive way of getting it? I've looked on eBay but am wary about buying there despite coming from Titanium Powersellers. Any recommendations appreciated. I've considered even just buying a new computer (such as the one offered in the Deals section) but of course that means potentially spending three to four times as much for things I don't necessarily need.