ok 1. Usually it tells you when you buy the motherboard what CPU's its compateble with...Use TigerDirect.com
2. RAM is probably most likely going to be DDR2 nowadays, DDR3 is JUST now coming out, and is only available on the higher end models....and again, it should tell you when you look at it online.
3. Graphics Cards....Express card 2.0, integrated and AGP are ones out there. AGP is outdated and is used only on older machines. Integrated Graphics are graphics GPUS directly on the motherboard, these are good if you're short on money, but they suck RAM away from the OS. Expresscard 2.0 is the best performance card available right now, and is on most cards right now. Some Motherboards have Integrated AND expresscard 2.0 slots.
4. Wireless cards are going to be supported on all motherboards, you just need an open PCI slot.
5. DVD drives are sorted into IDE and SATA catagories. The IDE are going to be for slightly older machines. They will most likely run a LITTLE slower than SATA. Most Motherboards have only 1 IDE slot...So it depends on what you're buying.
6. Hard drives have 2 catagories like DVD. IDE and SATA. IDE is for OLDER machines, and is generally going to be quite slower than SATA. However, IDE drives are going to be SLIGHTLY cheaper than SATA. SATA slots are usually in great numbers on the motherboard, so you should probably get SATA.
7. Chipset is the Manufacters Specs. Its like identification for the Motherboard type. Like Intel 965E. This is used to search compatibilty and supported CPUS.
8. Any motherboard can support any CPU it just needs a specific Socket Number. Socket Numbers Determine what CPU can go into whatever motherboard. no it does not have to be Intel Motherboards.
9. FBS stands for Front Bus Speed, and it determines how fast your computer can run. GHZ also deals with Speed as well. Generally, more FBS, more speed.
10. The Graphics card will most likely run on the Nvidia board. Nvidia recently started to make Motherboards to help gain money along with their Graphics cards. They shouldnt have any compatibility issues, because that wouldnt be user Friendly. :P
Hope this helps.