Get the Enermax Liberty PSU. Go here:
and calculate your system wattage, and get the PSU with at least 70 Watts more than your system uses at Peak Utilization. Here are the links to the Liberties:
As for slot fans, I don't use any, but Antec and Vantec are good makers of slot fans from what I've heard. I used to use this on my AIW9600XT with a fanless Zalman cooler:
Works great. PWM and pretty UV Blue glow. The Enermax Liberty and Vantec Spectrum Fan Card would be my two choices.