I was originally thinking I might go the refurb route, but am now thinking that because I want to keep this unit for at least 5 years, I want to "future proof" it as much as I can. With that said, here are the two options I'm considering: Option 1 - 21.5", 1TB Fusion Drive, upgrade to 16GB RAM - w/ EDU discount - $1,804 Option 2 - 27", 3TB Fusion Drive, keep 8GB RAM (b/c I can upgrade later) - $2,059. It's only $250 difference and I feel like the 27" gives me a lot of room to expand, but I'm not 100% convinced I need the screen real estate of the 27" (especially coming from a 17"). My workflow is pretty simple: MS Office for Mac, Web Surfing, minor Photo Editing (Photoshop Elements now, but likely moving to Aperture), minor home video editing, iTunes Library. I will likely use this as a hub for all of our media and stream much of it to iPad & Apple TV. Any suggestions/thoughts would be welcome.