I've done this myself, the only way is to remove the front bumper (which is why a dealer bill will be a lot of money for this job).
There's a thead in the forum with pics that show where most of the clips are.
See http://typeaccord.co.uk/forum/topic/1406-headlight-removal-and-part-of-the-bumper/
If you want to see an exploded drawing, go to the Lings Honda website.
Here is a link http://www.lingshondaparts.com/honda_car_parts_catalogue_C01.php
Put in your car reg, and then after a couple of other clicks, you'll come to all the drawings for your car. Go to the bumpers drawing.