It seems I've always got a camera or two with film in it waiting to be used. Right now:
Nikon F4 / Sigma 15-30mm w/ deep yellow gel; with some old Panatomic-X (tripod mandatory)
Canon EOS-1 / Canon EF 22-55mm; with t-max 100
Zeiss Ikonta 521/2 - 105mm 3.5 Novar; with Arista 400
I usually have film in one of my Holgas too, but for some reason not at the moment. Like to have them ready for use at moments notice, cause I'll take pictures of just about ANYTHING with them!