Not yet unless you really need one. Windows Vista is right around the corner which 
means that many brands will be featuring innovative computers to go along with the new operating system. Also, the majority of computers will offer discounted rates to entice consumers.
Further, if you don’t mind sticking with Windows XP, you’ll be able to buy a new computer with this operating system for significantly less when Vista arrives. Of course, the manufacturers will want to clear their shelves of Windows XP computers when Vista arrives, so this strategy of purchasing an older operating system version is quite clever.
For those who have no choice since your current computer is not operable, there is still hope. You may buy a Windows XP computer now and will receive a free express upgrade to Vista when Vista is launched. This means you’ll receive a free upgrade CD of Vista when Vista comes out. Just make sure the manufacturer provides some assurance of this.