I purchased the dell 8400 around 8 weeks ago just before it was replaced by the Dell 9100. I bought it with a pentium 4 3.00 ghz and 1mb ram , 160 gb hard drive plus 15 tft monitor, graphics card x300 etc for £440. I was wondering whether the new dell 5150 is a better base system than this one. I have the chance og buying a Dell 5150 2 gb memory , pentium 4 3.0 hz, 160 hard drive, 19inch tft, no graphics card for £585. I have been offered £430 for my 8400 by a friend. should i keep the 8400 or upgradeto the 5150 (i dont know whether its upgrading really) as the new 8400 replacement seems to be better classed machine than the 5150. what should i do ( i was going to pay £200 for a 19inch tft in any event and i have now got a X800gt card so i am not bothered that the 5150 has no graphic card with it.