depends what you're going to do with it. the only real difference is the processor. the pentium is a better chip imho but you'd likely never know the difference unless you're doing half a dozen things at once.which is better
http://www.argos.co.uk/static/Product/partNumber/018411/c_1/1|category_root|Office%2C+PCs+and+phones|14418968/c_2/2|14418968|Computers+and+monitors|14419111/c_3/3|cat_14419111|Desktop+computers|14419114.htm#pdpFullProductInformation
or
http://www.argos.co.uk/static/Product/partNumber/018394.htm
http://www.argos.co.uk/static/Product/partNumber/018397/c_1/1|category_root|Office,+PCs+and+phones|14418968/c_2/2|14418968|Computers+and+monitors|14419111/c_3/3|cat_14419111|Desktop+computers|14419114.htmdepends what you're going to do with it. the only real difference is the processor. the pentium is a better chip imho but you'd likely never know the difference unless you're doing half a dozen things at once.
get the extended warranty-they are not the most reliable.the wifes work are selling AppleMac pro workstations.....may invest in one if they are worth it.
get the extended warranty-they are not the most reliable.
the wife's lasted two years-after going back for factory repairs twice.
cof