A word of caution here, their 300W power supplys are not that good, so depending on what you are going to be running you may need to upgrade the power supply. I have a 1.2Ghz TBird running at 1370mhz with a Sparkle 300W power supply, the Antec 300W power suplpy would not cut it, the computer would not even sucessfully boot with the Antec 300W unit, but the Sparkle unit has had no problems at all. As for the fans, going with the standard 4-pin configuration will be the easiest to set up if the mobo doesn't have enough connectors for 3-pin fans.