To stick with OEM specifications your wheel choice will be 17x7+45, 17" for the rim size, 7" for the width, and +45 for the offset (http://en.wikipedia.org/wiki/Offset_%28wheel%29).

The tire size to fit that wheel will be 215/45/17 91V, that once again is abiding to OEM specifications which should ensure that you're not receiving an inaccurate reading on your speedometer, or having to alter you car in any other way, shape or form.



If you're keen on a certain image, you can safely go up to 19" for the rim size, and 9" for the width, and +20~ offset, but keep in mind by doing this you will most likely be looking into changing your factory suspension to coilovers, rolling your fenders, and adding camber arms.
Keep in mind this will cause headaches and will cost a lot more than simply sticking to OEM specifications. I'm not trying to deter you from this direction, its just how I see it personally.