How big a computer can the iMac carrying case hold with accessories?

17/20 inch iLugger iMac Carrying Case (Black) - 4.25 Customer Reviews Average Customer Rating 4.2 out of 5 stars (8 customer reviews) 5 star: (3) 4 star: (4) 3 star: (1) 2 star: (0) 1 star: (0) Appearance 4.3 out of 5 stars (3) Saved Portability 4.0 out of 5 stars (3) Saved Saving... Saving... Not rated yet Remove Saved › Rate this item's 2 attributes or suggest a new one. Share your thoughts with other customers: Create your own review Most Helpful Customer Reviews 4 of 4 people found the following review helpful: 4.0 out of 5 stars Excellent (and the only) bag for carrying your 17"-20" iMac, April 13, 2009 By L. Williams (Clearwater, FL, USA) - See all my reviews (VINE VOICE) (REAL NAME) Amazon Verified Purchase(What's this?) The iLugger fits current and legacy 17" and 20" iMacs all the way back to the white G5's. The case holds the iMac snugly and gives a fair amount of protection for traveling. The manufacturer says it is sized to fit in overhead bins on airlines--a statement I'll put to the test in an upcoming trip to the Netherlands. There are 3 carrying options: a pair of grips that velcro together for hand carrying, a shoulder strap, and backpack straps that stow out of sight in a front pouch when not in use. The straps and handles could use a bit more padding, but after testing, the case looks quite usable. I was able to pack my 20" Intel iMac, keyboard and Kensington trackball into the bag in just a couple of minutes, and unpacking was similarly fast. Fully loaded, the bag is heavy, but the shoulder and backpack straps are helpful for long lines at the airport. The bag also comes in gray, blue/black and orange/black colors. I would have liked to have seen a bit more screen protection such as a hard plastic insert, but the foam padding should be sturdy enough to prevent damage from most bumps and bruises encountered during travel. Like any piece of sensitive electronic equipment, you have to treat your iMac as gently as possible, of course. The zipper can be a bit tricky to close, but all of my quibbles are minor. All in all, this appears to be a very capable bag for travelers who need to take a full-on desktop Mac instead of a notebook. The materials and fabric are very durable and stitching is strong. Recommended. Source: http://www.amazon.com/gp/product/B000PCFP7G?ie=UTF8&tag=askvilleanswer-20&link_code=as3&camp=211189&creative=373489&creativeASIN=B000PCFP7G