The Timbuk2 Quickie XS is a great protective carry bag for the iPad that offers storage for accessories. What makes the Quickie a great protective bag is it's inside padding that consists of foam-like studded surface for impact protection. You can carry the Quickie by it's stow away carry handles or just use it as a sleeve. The Quickie has two front storage pockets which are covered by a flap that uses velcro to secure it self. The placement of the front facing pockets allow for storing your cables, power brick and other small accessories. On the outside, the Quickie is made from a nylon fabric which I do not know if it's water-resistant or not, so if you need a weather-proof bag for your iPad you should probably look at Timbuk2's other offerings.
The iPad fits nicely inside the Quickie with some room to spare. Now this is a slight problem because the iPad does move around a bit inside when you're carrying it inside and I'm not sure you would want to put anything other than your iPad inside the compartment. The Quickie XS doesn't seem to be made to exactly fit an iPad. While it the Quickie XS offers some good protection and accessory storage for daily use, it fails to fit the iPad like it actually should. Since the Quickie XS came out for the iPad, Timbuk2 made some newer Envelope sleeves for the iPad that I would recommend taking a look at. Price $45.