I currently have the 2011 11" MBA with 1.6 Ghz and 4g RAM. I've been very happy with it until my usage habits started out stripping the system this year. Now that I'm averaging 10+ g of page outs a week, I was eagerly anticipating a refresh to the RMBP that didn't happen yesterday... My question is, will I see enough of a difference with my usage habits to warrant waiting for a 2013 RMBP? At any given time I have 10+ tabs open in Safari, ~5 tabs in Chrome parked on various vids with one actually playing a vid, some various finder windows, and photo editing software open sometimes converting RAW. Occasionally I will have Word or Excel or PowerPoint briefly open, Skype, VLC media player and Adobe Lightroom briefly open as well. I would be going for the 15" RMBP BTO with 16g RAM, 256g SSD at 2.6 ghz (whatever the lower CPU is). Education pricing places it at $2,199. Is this the configuration that gives me HD4100 (I believe that's the newest one I've read about in the forums) and do my needs warrant waiting a bit longer? I primarily want a gorgeous screen to view pictures on and a machine that doesn't choke on my usage. Many thanks.