wow, very broad question, if money isn't a huge concern , go with an 815e chipset intel board (i'm only going to list intel solutions cause i don't know much about AMD), my personal favorite is my current board the Abit SA6R but the Asus CUSL2 is also a very respectable Motherboard. As for the CPU, there are many options but once again if your not on a tight budget, get a P3 700 or if thats too much a 550e will suit your needs pretty good... i believe these two would be the better "clocking" chips, except maybe for the 800 which is a bit more pricey... if money is a concern, there are a plethora of tried and trued BX boards that will run p3's and celeron II's that can be had for ~$100... hope this helps you get started in the right direction... for info on boards, check out the forums here and search for specific motherboards your looking at, theres been many posts and i'm sure you'll find some good info