I must add my two cents here regarding the Google (Asus) Nexus 7 tablet computers. There are now three of them in our household; both my daughter and I love ours so much that my wife insisted on getting her own as well. I'm happy to say that all three Nexus 7s are completely flawless, and I don't believe a better tablet exists today, thanks to an incredibly speedy/smooth quad-core processor, amazing high-res screen, and of course the fantastic Android Jelly Bean operating system. (currently at 4.2.1)
To those who have mentioned quality control issues near the start of the production run, (screen lift, dead pixels, poor speakers, etc) those problems have long since been dealt with, and it's safe to say you are assured of getting a perfect copy.
And since this thread started, a 32gb model has been added, although we find that we never have any storage issues on our 16gb models. Also, with the addition of a micro-USB adapter (online for 99 cents) and the Nexus Media Importer app, along with a memory card or flash-drive, you can easily increase your storage capacity.
Highly recommended!
Glen