sp-303 and midi control

[jef lear <static@polishoperative.com>]

hi.
my only exposure to midi is on those
websites with flashing gifs and bunnies that hop.

my query is this:
i own a sp-303 (which i'm well pleased with)
and want to trigger samples with my feet both
live and recording. since i am not familiar
with the specifics of midi, i was wondering
if it was possible to use a foot controller
with said device.

if the foot controller is an impossibility
could someone recommend an alternate solution,
apart from running my own triggers out from the
pads inside the sp-303?

if it's a lost cause with the 303 can someone detail what
they do with their samples when their hands are full?

thanks alot.
this is a great community.

jf

ps. 
be gentle, i'm new and did search 
the archives.