a10 vs 3220

Well there you go, it is a blessing in disguise, now you have a good reason to get a proper heatsink ;)

FM1 heatsinks are compatible with FM2 right?

Also  will get the a10 with a discount so it will be cheaper than the i3

Yes sir, and very nice! Congrats on the discount, saving money is always good!

EDIT: Yes it is compatible. http://benchmarkreviews.com/index.php?option=com_content&task=view&id=711&Itemid=63&limit=1&limitstart=3

but is FM1 heatsinks compatitable with FM2?
 

i want to ask if the g.skill ares 2133 momory are compatitable with the a10.