I'm currently building my first PC myself. I did a lot of research on each component I have decided to buy before I actually bought it, cos it's a good idea to not get any unwanted surprizes later. Also read lots and lots of reviews. How did you find your motherboard? If you just found it on the web and selected to buy it without any reason, then atleast try searching the web for a few reviews. It's important to know a litte about the board performance etc... Of course, if the computer you are building is just an practice dummy and you don't actually plan to use it... just buy the parts and put them together. For the processor, I suggest the Athlon XP 1800Mhz verson. Check if the mobo supports it first though.