I'm about to buy the standard 15-inch Retina MacBook Pro with the 2.2 GHz Core i7 & 256 GB. Typically I use photoshop, illustrator, indd, and jump between programs (sometimes Flash). I doubt I'd ever do much heavy video editing on it. Should this model be enough to get me by? Or should I customize it more so to insure that it will be running well for a few years? I recently spoke to someone at tekserve who suggested I increase the GHz and even the GB. (of course they were likely trying to get more $$) I have no issues archiving old files, etc. Any thoughts???? Thanks in advance!