Then you probably want a 4x5 field or press camera. The cheapest way to get started would be with a used press camera such as a Speed Graphic or Busch. These are available for under $300 used with a press lens; many under $150.
There are many fancier field cameras available: Toyo, Calumet, Wisner, Horseman, Ebony, Zone VI, Shen Hao, and on and on. These cameras start at about $600 for a new one without a lens, and go very, very expensive.
Press cameras don't have as many movements as a good field camera, and may not be able to accomodate the longest focal lengths. Press cameras usually have no rear movements (although I have seen folks modify theirs so it did have rear movements), and limited front movements. The simpler models (like an Anniversary Speed Graphic) may only have rise, and maybe a drop bed. The Super Speed Graphic has pretty much all the front movements: rise, shift, swing, tilt, and a drop bed. Press cameras are usually built very tough. I use a Super Speed Graphic with Schnieder lenses for most of my LF landscapes; I love it. To check out more about Speed Graphics go to
http://graflex.org/
Press lenses are cheaper lenses, sometimes in very simple shutters. Many of them are pretty decent lenses if they are in okay shape, and they go pretty cheap ($75-$200). Higher quality 4x5 lenses will be $300+ for used.
Besides the camera, a lens, and film you'll need:
lens hood, filters, etc...
dark cloth
film holders
cable release
tripod (big enough to handle a LF camera)
light meter
a loupe comes in handy for focusing
and something to carry it all in.