Suitable mobo!!!

Hai guys~~!!!Can I ask something about how you guys choose between cpu and mobo??? Let just say if I want to buy processor: AMD Phenom X3, model 8450, 2.10 GH. What kind of mobo that suit with my chosen one??N if u can teach me how to choose which mobo to buy, below my budget $80, plz teach me do. Whether the type of socket, FSB, mobo type, or any method that I not mentioned it, plz do care to answer. I'm dying hard to know this from your superior knowledge of pc........Suitable mobo!!!
First you look at the socket type of the cpu and motherboard and see if they match. Next is to choose a motherboard that you would perfer. Like how many ram slots you want %26 how much ram it can support. Next is to look at if you want SLI or Crossfire or just a single pci-e slot motherboard. Also how many things you plan on hooking up to the motherboard like ide or sata hardrives, Pci cards, fans, DvD drives etc. Then look at the brands of the boards. Good ones are ASUS, Gigabyte,MSI, Also as a note Microboards arent meant for gaming for the most part.Suitable mobo!!!
Well, can u explain me this mobo. GIGA M56S-63 is a model, Chipset NFS560, RAM 800, 3600 FSB ... can it fit with my chosen CPU??? The list just show me this. How do I know how many ram slots that it can support? And whether it is SLI or Crossfire?? Do I need to research more in the internet about it?? Is it that what u guys doing????