Upgrade or wait and replace? Sony Desktop

[church]

Hi Guys,

I am very confused at the moment. I have a Sony Vaio PCV-RS402 desktop at the moment which has a 2.8Ghz P4HT processor. I now find this very sluggish and think its time to upgrade, however wallets are tight and I dont have very much money to spend.

I was wondering if it would be possible for me to upgrade the mobo, processor and ram in the system, keeping my current case/power supply. This is purely because I can't afford to spend too much money. I was thinking of spending approximately £250. For that I could potentially get an AMD quad core and mobo and 4gb ram.

Usage wise, I don't do much on the computer other than go on the internet and watch videos/films. I dont play many games on there but thats partly due to the fact that the computer can't really handle any games! That may change but I know that I will not be a heavy gamer.

The ideal senario is to use my existing Sony case and just change the board. I am not sure if the board in there is ATX or mATX. Is there a way to find out or will I need to open the case up and measure? I realise it isn't the best way to do this so would like your opinions.

Thanks

 

[church]

that's an option I hadnt considered. I was looking at the AMD Phenom 2 X4 with a new mobo that has USB 3, firewire and HDMI, giving me more options for when I get a new tv/monitor. I don't know which of the two would be more futureproof. I will see if I can find out more information on the case/mobo size online...maybe look for replacement motherboards with the same model number. That may give me a clue as to the size