Hi chaps, a little advice please, I have an old iMac, pretty high-end but I don't work in graphics any more so don't need loads of power or storage. The iMacs video card is failing and it will have to go some time but what to replace it with, portability isn't a big deal as I have an iPad for travel though the fact that I can move it room to room makes a laptop attractive. So I guess I'm looking at some advice about the best option from, maybe, ebay. Macbook Pro, Air or iMac. Screen size isn't a biggie either, I just need to make a few adjustments on photographs with photoshop and I have some external storage drives also I guess they don't all have dvd drives (I have some software that's on DVD).