I personally love nvidia , I run one of there mid graphics card nVidia 5500 with 256mb but I I am waiting to upgrade my memory to 1-1/2 gb ....I only had 512 right now , thats what they recomend BUt you kow that usually it will still freeze up when trying to get to indepth .... atleast thats always been my problem with some of my graphics programs .. as far as your radeon ... I dont know to much about that brand but it doesnt hurt to try ,, that and I sure others here will be a able to give a lil more advice to all of us here .. I am a beginer/ novice when it comes to hardware but slowly learning I am sure in the hardware hangout thread that is in here could do us both good ....