Hey guys i have a ton of bother with my iMac bought of Friday. I'm on to my 3rd unit as they have all had dead pixels. This one is totally fine though but i noticed the man in the shop gave me it, it was the lower spec model by mistake. He said he would refund the difference though so i'm happy to keep it as long if i know the graphics card (128mb 2400XT) will come in fine for HD editing. I edit BMX and Skate videos so i don't do this professionally but i do have a few years of experience. So i'm just wondering how it will fair with say no more than 45minute HD videos on FCP. Also is it worth putting 4GB ram in with this graphics card or would it be a bottleneck? Thanks guys.