a very full question - first most mobo bundles are good value but you will probably find that the memory is different to your old one. Also the amount is probably smaller than you would fit now. As for graphics card you really need to look for one that is best for what you want to do. Either gaming or office type stuff. I go for the best I can afford which for office type stuff and cad has 250MB of ram. Sorry I cannot be very specific but look up what people using what you want the pc for have got. Another thought what about a barebones unit from the likes of Novatech which is case/psu/mobo/cpu and ram. You then need to fit a graphics card - hard drive and dvd drive.