We have moved to a more remote area of 63, where DSL broadband service is, to put it mildly, slower than a combined channel ISDN, and where Orange were unwilling to do anything about improving the situation. Wiimax is unavailable where we live, although it is literally used to serve a fairly significant area the other side of the hill. The only option left was satellite internet, and rather unsurprisingly, the only provider serving this area including telephony in its offering was Nordnet. As yet, we are still waiting for the installation, so I will be interested to see what we actually get out of this service.
I would disagree with Alison about it being expensive - we bought the dish and electronics equipment for 149 Euros, there is a special offer on at the moment, instead of renting it, and the monthy cost including French landline phone calling is 39.90 Euros for 15Gb monthly data cap, which should be OK for domestic use. If you want to be able to ring mobile numbers in France, USA and Canada and in the usual 50 country landline offer, then it will cost another 14 Euros on top per month.
Living in the Auvergne allows for many people forced to install satellite internet to obtain a grant which basically covers the cost of the equipment (up to 400 Euros). However, if you request a grant, then you must leave the equipment in place in the house, even if you move house at a later date. It is a "per residence" grant.
As for contention issues, we will find out soon enough.
If you are running a business from home, you will have to see if you can get a suitable satellite pro offer, and yes, this will likely be significantly more expensive, approx 100 Euros/month for a decent data volume, although in my previous village where we had DSL, I was already paying that to Orange for a dedicated line with guaranteed re-establishment in case of a technical incident, so if I were to install an office in my new home, it is something that the business could cover. As it is, I'm moving my business to a nearby town where fibre channel internet is available so the question no longer really arises.