What would be the cheapest?

What Canon or Nikon would be the cheapest with a full frame sensor?

Added (1). I like to get answers from real owners who can give me better tips…

Will you please stop asking questions that you can answer yourself with a couple minutes of research?

That's BS. The price is the price no matter what an owner says. It's clear from your other questions that you are clueless about DSLRs. A full frame DSLR will cost you a couple thousand no matter what brand, and would be a complete waste in your hands.

In the time it took you to write this question, you could have looked on Canon's, Nikon's, Pentax's etc etc websites. It's obvious that you don't know the advantages and disadvantages of full-frame sensors. Full-frame sensor *does not* = better image quality. Update: Hondo is right. Spending $2000 on a camera will not magically make you a good photographer - you'll just have very high-quality random snapshots. Go to your local library and read some (no, wait, all) of the basic photography books they have, then choose between the Rebel T3 and Nikon D3100.

If you are looking for anything cheap then stop looking at full frame cameras. Look at medium format instead!