Don't register the installation with Npower - 5 months on, and we're still trying to sort out the paperwork 🙄

Yes. Fitted early December. 3kW system from Love Solar (know the guy from cycling - he's on here somewhere...).
Made about £70 so far, with best day being 11kW yesterday.
Scottish Power.
You'll need to be quick to get any higher Feed in Tariff - due to be dropped substantially.

Tomorrow

My folks house has had solar panels for 30 years or so.

Ours went in at the beginning of December and it's pretty cool really.
This is the output we've had so far: [url= http://pvoutput.org/list.jsp?id=6085&sid=4867 ]PvOutput[/url] and this is what we've managed to do to our electrickery usage, although this does also involve some other changes I've made to how we use power:
[img] [/img]
EDF still not sorted out FITs yet but we should be getting some regular payments fairly soon.

Not PV but I fitted solar hot water to my house for £700.

See here: http://s36.photobucket.com/albums/e49/C957/Solar%20project%202011/?albumview=slideshow

Live webcam of ours (well, the company's!) being installed [url= http://www.at-bristol.org.uk/solarwebcam ]here[/url]!