The best time to dive Apo Reef is November to May and one of the ways to dive this site is on a live-aboard out of Coron.
Sea Dive Resort has a new live-aboard and they have scheduled to do Apo Reef starting in November and into May 2011. The price is $1,250 for 6 days and 7 nights - non diver price, deduct $175. Some wreck diving around Coron is included in this trip.
See the Sea Dive web page for more info - http://www.seadiveresort.com/Seadive-Genel.html
For more info about Apo Reef - http://www.etravelpilipinas.com/dive_sites/apo_reef_dive_sites.htm
Contact Sea Dive for more info - firstname.lastname@example.org