Like Nick, I am in France (towards the west in Nantes).
I had a Foxsat HD (still have it) and replaced it with the Foxsat HDR.
I have a Technisat Multitynne 45 cm dish (massive LNB though!), which captures Hotbird 13, Astra 19, Astra 23.5 and Astra 28.x.
Even though this dish is only 45 cm, the reception is great. I haven't perfectly aligned it, and will need to raise it due to some branches, but I still get all the UK channels (including ITV HD) perfectly from Astra 28.x. Like stated elsewhere on this forum, if the DECT phone is too close to the LNB connector on the Set Top Box, the channels on the "weaker" transponders (such as Scuzz) have "signal problems", which do not exist when the DECT phone is move a little further away.
On the other Satellite angles I have issue with some weaker transponders on Hotbird 13 (Art package, and Abu Dhabi Sport), and Astra 19 (DSF) when the weather is really bad. However, I suspect this is because I have not perfectly aligned the dish.
If you only want UK channels then the standard 60 cm dish will do you proud (you should have no problems if it's correctly aligned).
If you fancy getting more non-UK channels then I recommend the 45cm Mutliynne (see
here).
Both the Foxsat HD and Foxsat HDR are easily configured with this dish.