I'd really suggest to anyone to look for a free / super cheap monitor in their local paper. I have a 19 inch Dell that rocks for TS and Battlescreen.
Played BF3 earlier....don't wanna go back to 4
27 & 23 here
Been playing BF3 since middle of December, even though it has it's issues, I much prefer it to BF4 (for the time being).