The ECS A770M-A isn’t really the motherboard you want if you are putting together a Spider platform.  The new AMD 770 northbridge will give you support for Phenom, Athlon FX, Athlon64, and Sempron processors, and support for HT 3.0 and PCI-E 2.0 make it an attractive board, but the lack of 4 PCIe slots might put a damper on your plans.  Even so, Overclockers Club did like this first revision board from Elitegroup.

“The A770M-A is an entry level AMD 7 series (770/790X/790FX) ATX size motherboard for the Spider platform (when paired with a Phenom CPU and ATI 3800 series graphics card). Upon first glance, the layout of the board looks promising. It has support for the Quad Core Phenom CPU as well as Dual and Single Core AM2 CPUs, so current AM2 users have an easy upgrade path to the Spider platform that should not break the bank all at once. The rear of the board is standard fare with no obstructions on the back.”

Here are some more Motherboard articles from around the web:

Click Here to go to Motherboards  Motherboards