dovah-chan :
You rarely see a mid-range card that big so you might have your dimensions wrong. But it'll most likely fit because if people can shove a 680 into a mini ITX system then I'm sure you can get a 270X into a mid tower. Just looked it up and its a windforce card so of course its unnecessarily long. Might have to look for another case or a shorter card. (I personally don't think zalman is the best brand to be buying a case from and that they should just stick with coolers)
Around that price range I'd get something like a HAF 922 or of course my favorite fractal design define R4
Eh, the GPU itself is pretty good for the price and nope, the sizes are accurate. I really don't feel like returning the case because that'll take forever, because I got it from Scan.co.uk. Oh well, if it comes down to it, a saw will come in handy
If you do know of any other GPUs around the same price point, sold on Amazon and also are AMD CrossfireX compatible, let me know