| Well if you are going to purchase the 6800gs you will most probably need a new power supply. While that power supply seems good at 400W (the ebay link one) i would always prefer a well known brand of PSU's just incase you get some dodgy aftermarket one, companies like antec, tagan, seasonic,hiper, enermax etc are good well known brands.
To be perfectly honest you will get a performance increase in games with the 6800gs but it wont be a major increase as your cpu will be bottlenecking the card hence, why a full system upgrade would see a much more significant difference, which is obviously not what you want to do right now.
If you do upgrade the graphics card then a new psu will definately be in order as the latest graphics cards are quite power hungry and frankly your 250w psu will not put up a good fight.
If you can put up with oblivion on low resolution, then i would for now until you do decide to upgrade to a pci-express system, as being honest the performance difference would not be huge and that money could go towards your new upgrade in the future. the decision is yours at the end of the day. |