If you are serious about doing a true retrofit, be prepared. It is not cheap and the outcome is well worth it. It pays itself off.

HID Retrofit Parts Projectors Ballasts D2S Bulbs <---check out the university section
The Retrofit Source (U.S.) - HID Projector Retrofit Kits, Retrofit and HID Componenents, Projectors Lens, Wiring Harnesses, Shrouds and more! <---check out their forums too.

I would assume someone has done them for your honda already. It is guaranteed their are projector lights already available, but unless it's of known high quality, going this route will provide you with the greatest output of light and satisfaction in your work. LMK if you need more details, PM if necessary.

Cliff