midi sustain pedal/foot controller?

ahoy all.

i apologize in advance for being clueless about this... here it goes: i have been using logic express 7 for awhile with an edirol fa-66 and it works great. however, i have only been recording via mics or line-in. now i have an old casio keyboard (ctk-530) that has midi in and out ports. i have run the midi out of the keyboard to the midi in of the fa-66, and it works like a charm. now, i would like to do two things and after perusing the forums, i am still lost:

1) use a pedal/foot controller of some sort to do sustain while playing the midi keyboard.

2) use a (possibly the same) pedal/foot controller to controller other parameters within logic, say the parameters of an effect, similiar to automation. for example, controlling wah parameters while playing.

i do not know if the same thing can do both. i figured for the sustain pedal, it would be something i plug into the midi bus that sends sustain commands. as for the more generic foot controller part, would this be a midi thing as well? i have seen the Behringer FCB1010 being mentioned..

i am sorry again for my confusion. would appreciate any help/suggestions/recommendations?

thanks.