Oh sorry, see wrongly. Read wrongly, thought you talking about laptops, paiseh. Then lagi worse - desktop I expect lagi cheaper! Hahahahaa...
Okay lah, it all depends on the config lah. Desktop + LCD monitor (19" some more) - can get below S$1,200 even (not self-assembly; from some company like HP/Compaq or Acer... can't remember). Decent config lah, for people who're not into the 3D games with their insane gfx requirements, can do the job.