Brakes Part 2

Couple Questions...

#1. whats better to have as brake rotors? Slotted or drilled? or both? What are the advantages of both?
#2. When replacing the rotors, how do i get them off. I replaced the pads last year and i saw a few screws in the rotor...do i take them out and then the rotor should come off?
#3. If i want to replace the brake lines, I am pretty sure i have to bleed the brakes but how hard of a job is that with a honda? My service manual says i need to buy some computer thing and plug it into the ABS plug under the front passenger seat.
#4. Any recommendations for pads?