Pentax 6x7, 67II, K10D, *istD, LX. Favourite glass for 35mm/digital would be the 31mm f1.8 & 77mm f1.8 limited primes, and Sigma's 12-24mm zoom. For 67, you can't go wrong with the 45mm wide angle or 105mm f2.4.
My day job is an archaeologist in a big University in the UK, and I take photographs both for my job and for my own enjoyment. When not taking photos, teaching or doing research I can sometimes be found hanging around preserved railways or making models.