@thebest0905, Motherboards are many, depends on the Type and quantity or Ram you have. DDR2? DDR3? and what speed.
lastly where you are in the world also make a huge differemce..
Asus P5QL series of Motherboards are solid, non OC motherboard using DDR2 up to 800 Mhz for example is a possible answer for you.
cost less than 50$on ebay
an extended answer to your question would be to visit this web site to find the complete possible listing of motherboards that work
with your Q6600 or Q8400 CPU and you could copy an paste those name on ebay, or any other purchase site and see what works for your wallet and ram
Q6600 :
http://www.cpu-upgrade.com/CPUs/Intel/Core_2_Quad/Q6600_motherboards.html
Q8400 ...