你要拿来干什么呢？

I bought a HP in CircuitCity for $600, dead in two years because of bad nVidia chip. But the memory and CPU sold for $100 on ebay.

I bought another similar refurbished model from a cheapest site at $300. It runs great for 2 years now, not a single issue.

My suggestion is if you are in the states, get the lowest possible machine (if you are not gaming) yet smallest. If it runs for 2 years, you can get another better one for the same price with better performance. At the end of 4 years, you will have 2 machines. This way will beat any full price purchase now in 4 years running! The difference of nowaday's "good machine" will be bad in two years anyway, maybe less than that the 2nd machine you could buy! See my logic? :)

http://dealnews.com/HP-Pavilion-Slimline-s5310-t-Celeron-2.2-GHz-PC-for-350-19-s-h/370384.html

http://dealnews.com/Lenovo-Idea-Centre-K305-AMD-Dual-Core-2.7-GHz-PC-for-399-free-shipping/370376.html

You are out of luck if you are in Canada. :(