It seems Orange in Romania is the first one to put up the new Samsung Galaxy S5 for pre-order. The phone is available with a 2-year contract for €249 or you can pay €699 and get the phone without a contract and also completely unlocked. Orange will also throw in an S-View Flip Cover for the S5.
As far as the delivery is concerned, the site mentions that the expected time of delivery is April 11, same as the date announced by Samsung. Orange Romania is selling the phone in black, white and blue, with the gold color option nowhere to be found.
You can find the link to purchase the phone below.
Orange Romania (Thanks Ioansuhov for the tip)