Thanks guys.
I went with ROTA C10's (Circuit 10's-10 spoke design)
15 X 6.5
4 x 100 bolt pattern
They are part of ROTA's lightweight racing wheel lineup
11-11.5 lbs each
45 offset (fit perfectly)
I had a test fit on a hoist first to check the rears, then test drives to test during driving/with load on them.
Put a couple hundred km's so far, with some good, hard cornering and no problems so far (no rubbing).
Guillermo: I went with some cheapo high performance all seasons (Kuhmos), since I have a Civic EK which I track with already running R compounds.
cosworth: the tires are Kuhmo 711s 195/50/15 (there are much better tires out there though. Honestly, these are average or just above average at best.)
oh yeah, and I can't forget the gunmetal shift knob which we all know adds at least 5 hp!
http://www.dscr.net/pics/cmb/insightknob.jpg
next up is a replacement 12V battery and then who knows..
oh yeah and props to this site for being an info lifeline to a newbie Insight owner.