Winch Launch, LYS and CDG are not yet pilot bases, but will probably become pilot bases sometime in the future. Rumour has it, that a lot of the ex-Sabena guys want to transfer from Orly to CDG if and when it opens as a pilot base.
There is a considerable holding pool in EZY right now and I suspect the company has received quite a few applications from ex-Zoom, XL and Sterling pilots by now. Newcastle, Belfast and Luton are the 737 bases right now.
I know that there is a considerable waiting list for Basel and I do think that it will take quite a while to get Génève as well.
Take home pay (i.e. after taxes) will be around 3000-3300 pounds/month in the UK depending on hours flown .