Apparently there will be a major cashback action in June and July:

It will be up to 200 Euros, e.g. for an A900 or a 70-200/2.8, 70-400G, CZ lenses...
It will be 100 Euro for smaller items, like A550 or CZ16-80 or 70-300G

This has been (inofficially) confirmed by a Sony dealer, though I don't know if this will be for France only or all of Europe.

So don't go out this weekend and order anything, wait a few days...