If you want to keep your OEM tire diameter, go with 205/40R16. This means your speedometer will be accurate.
I went with 205/45R16 because the roads are bad around here and I wanted a little extra sidewall cushion. My speedometer would read just a tad under though.
(205/45R16 is actually the same diameter as the 96-00 civic. every generation civic gets larger and so does the tire diameter, slightly)
Here's some pics of 205/45R16:
