I live in the UK, although I did all of my initial training in the USA ie, PPL-CFII etc. From what I could see, from the instructors I worked with, none of them were getting hired with less than 3000 hrs of which 2000 were twin hours. It is so difficult to get into the rhs of an airline in the states. I left USA with 1700 tt including 500 twin and got a rhs of an airbus in the UK after my conversion. I reckon it will probably take u at least 2-years of multi engine instruction before the commuters will even look at your cv. - Hope this isn't too depresing - anything worth having isn't easy.
ps. You may slightly improve your chances of employment if you get yourself a type rating ie B737 etc.