Hello. I've read so much about this, but I wanted to ask a sensible crowd of people. Is Aperture 3 a resource hog, compared to Lightroom? I own Lightroom 3, and I like it, and it does everything I want - apart from making real duplicates of images in favour of cascading styles in some kind of text file. That I don't like, I want the changes I make saved into the image. Hence Aperture as a consideration. But I read a lot about it being very resource heavy. I have a unibody MBP 15", 8GB RAM, i5 2.4 with Force 3 SSD and 27" Cinema Display. Is it really that resource heavy? Lightroom can sometimes stall when changing modules. Photoshop is slick, in fact the rest of the Adobe CS5.5 suite are super fast, Lightroom is a bit clunkier. I shoot on Nikon DSLR's and a Fuji X100, adding the X1 soon. My library will be stored on a GTech 3TB drive, backed up to a second identical drive, then onto a server at work. So, Aperture users, have you noticed chunkiness and resource hogginess? I'd download and try a demo, but I don't have time.