34R,
There is no one answer to your question. The optimum route that you can take here in Europe is to do a one year course to get all of your licences. Once this is done you look for work on anything you can get, this ranges from turboprops right through to 757/767/737 and airbuses.
Quite a few guys get lucky and move onto jets with only 200 hours (seems low I know, but it is different here than in Oz/NZ). Most however aren't this lucky and end up instructing or doing charter stuff until they get their first break. I myself had 1000 hours instructing before moving onto turboprops, some on my course though had only 200 hours. So all down to luck.