I personally like to use my normal kick micing setup when recording samples, which usually consists of a D112 or D6 inside the kick, a speaker rewired as a mic right outside of the kick, and some type of LDC a few feet back in a tunnel.  I'll record each of these mics separately, making sure there are no phase problems, and save each signal as a separate sample, but then I'll also mix the three mics together to get what usually acts as my final kick sound if I'm not sampling.  I then save that sound as a fourth sample.  I usually don't use the single mic samples, but I like to have them in case.  I'll do the same thing with the other drums(with their own respective mics, obviously), and there's my sample library for that kit.  I don't use any effects or processing on my samples, so I can use them during the mix.  Oh yeah, I've recently started recording room sounds for the drum samples as well, oftentimes actually editing out the initial drum sound so all I get is an ambience with the drum's pitch reverberating.  Obviously this takes a good room, but it's a great way to add brightness and body to a drum without washing it out in its own room or reverb.  I read about Andy Wallace having a whole library of just drum ambiences, so I gave it a shot and so far it's worked really well.  Oh yeah, Sonic Maximizers SUCK.