Well, I eventually got everything sorted out and got the machine four months after I ordered it. Things turned out rather well on the Apple side of the process (I haven't had any power supply or screen issues, for instance), but the sub-standard RAM I got means I will only buy anything of the sort from FNAC if I have absolutely no other alternative.
Since Melo just got his (ordered on February 14th, delivered on May 26th, 3 months and 11 days afterwards), I can categorically say that, overall, I'm quite lucky.
After all, plenty of my other friends are still waiting - so many that we still don't have enough data points (three order/delivery dates don't justify the trouble of plotting a chart...).
The absolute winner, of course, is a British colleague of mine who simply popped off to lunch and returned to the office with his mini and a tuna sandwich.
We have plenty of tuna over here, but seem to be running rather short on apples...