First post. As a newbie, I'm sorry for existing. I cannot stop thinking about getting this new 15" rMBP! I'd mainly be using it for internet browsing, watching movies, listening to music, very basic things like that. I would get a Macbook Air, however, I still do photo retouching on Adobe Photoshop CC + some Illustrator stuff. I work with very high resolution 16bit images, with lots of layers. Also, I have a 4K LG TV that I'd like to hook my Macbook up to occasionally. I know that's a lot of work for the Macbook to output to 4K (Is it even possible?), but I don't care if it outputs in 1080p or whatever, I just want to be able to watch Netflix on my TV through my Macbook without it freaking out. I'm wondering if it would be a good idea to get the rMBP with the dGPU or if the iGPU will suit me just fine. Will these scenarios be an issue for the base 15" rMBP with added 500GB of flash storage? I've also heard that the dGPU is just a bit more of a hassle. I'd like to keep my laptop as simple as possible. That's why I'm selling my PC in the first place. Too much of a hassle. Thanks!