sadly cs03dmj, i fear you have very little chance of getting any of the big boys to sponsor you. like most wannabe pilots (most also can't afford their ATPL's) you'll need to find some way of sponsoring yourself through an integrated ATPL course, and start with the small boys, before you can end up on the big boys.
Cabair, CTC, FTE, AFT (and many more) Flight training schools provide solid bases with which to launch your career, CTC is the closest to a sponsorship, but it still requires you to pay the course fees. A few of the very small airlines (but good) do still sponsor , but you'd be up against an awful lot of competition for 1-2 spots.
the fact is while airlines need pilots (yes they do) there are so many people with ATPL's and minimal hours around that the companies have no real need to sponsor new pilots. They save 50k by taking fresh self sponsored graduates.
Sorry to be the bearer of bad news.