2 systems, don't know which 1 is better

Ok i have a choice out of these 2 pc's

AMD-http://www.meshcomputers.com/Default.aspx?PAGE=PRODUCTVIEWPAGE&USG=PRODUCT&ENT=PRODUCT&KEY=174269

Intel - http://www.meshcomputers.com/Default.aspx?PAGE=PRODUCTVIEWPAGE&USG=PRODUCT&ENT=PRODUCT&KEY=51980

For the AMD i was thinking of upgrading CPU to 4200, the power supply and the graphics card.

With the intel, i don't really know.

I currently have a 3ghz P4, 512mb RAM with a radeon 9700 pro and the system is pretty much on it's last legs after having it more than 4 years.

Which do you think is better, and what customisations would you make?

Also i don't wnat to spend more than 500.

Thanks

id get the amd one because its 45 odd pounds cheaper and they are quite similar. but just make sure you upgrade the graphics card to a 7600gt which is cheaper than 100 quid.

Another thing, it comes with a 250watt power supply, would that really be sufficient, or should i bump it up to a 550watt?Param_basic

I went with the X2 4200 for my build and she flys, but Intel's E6300 and above are better. The 250 watt power supply is a joke. Stay clear because it is way to under powered to run any decent video card. roulettethedog

yeah, thats like 977 USD...Whats with that?frost_mourne13