Hey I hope I was wrong!! Thats wonderfull if they are coming with heatsinks, I was under the impression we will have to provide "cooling" as in heat sinks as well. So, thanks I will double check but that is great if so!
EDIT: Just re read their website,,,It says nothing about heat sinks one way or the other?
just "completely assembled boards" ok,,,Ill just email them and double double check,,,lol,, Not that Im doubting YOU 
Yes 'cooling' may need to be provided - in addition to the heatsink. The idea is the boards come with the heatsink but you may need/want to provide additional cooling (i.e. a fan or 5) depending on different factors - overclocking, high density placement, putting in a small enclosure, running someplace with a high ambient temp, etc
Well at first i thought they did have the heat sinks,,,but didnt know that for sure,,,guess i "assumed" ( and I read so many other threads on people looking for heat sinks but that may have been more for development of case builders like bicknellski and company) but Im cool with creating airflow as I figured on that,,,but thank you for shedding light on that question!