I'm not in the market for an Xbox but I was just browsing NCIX US and saw this. I know MS has the Titanfall bundle right now but this deal could be decent for some if you can't a bundle with no tax (or if you don't want Titanfall). It says "No Sales Tax (Outside California)" at checkout.
I logged in and was able to pick free shipping as an option ("Ground Shipping Promo- in stock items only" was an option, though it wasn't selected by default). By default a $15 insurance option was selected, so make sure you uncheck that if you don't want it.
Since I'm a super lurker here, I don't have the required 3 posts (lol!) to post a link. It's right on their homepage though.