Hi farhaded,
I'm looking at wheels right now also. I took my 03 Civic 4D LX down to the shop and he said basically the same that others have said in this thread: Make sure you maintain the overall size.
But he did mention that the lower profile tire you add, the more you'll feel all the little bumps on the road. He basically talked me out of the 17's. I'm going with this set here:
Motegi FF7
I went with the gunmetal finish so as not to be too flashy as the Civic is my commuter. Haven't decided on the tires yeat but my bro. in law swears by Potenza's.
You can get the Motegi's on Ebay for between $350-$375 for a set but they cost $80.00 US for shipping. The shop in town can get a set for about $445 so it's not worth it for me.
Sorry to hear about the wreck,
HM