The ride was pretty-much unchanged. The only thing I noticed was the first couple of times I got in the car I sort of "fell" into it because the seat was lower than I was expecting!
It took a few weeks for the car to settle down, so anyone getting the springs done on their MK2 focus don't be too disappointed by the amount of the initial drop - it WILL go a bit lower over time.
The wheels I have on my car are the 18" Ford wheels that are standard on a Mondeo ST. I don't know how wide they are but I have 225/40 18 tyres on (Ultrac Sessanta XL tyres).
On another note, I have my 17" wheels for sale - same as the ones in wifiuk's signature above. I have a set of 5, 4 with tyres (I will check the amount of tread at the weekend - they are stored right at the back of my shed! They are all legal though) and a 5th alloy thats never been out the box. One of the alloys that has a tyre on it has a few scratches on one spoke only - thats why I bought the new alloy - but I ended up buying the 18's so it never went on the car.
If anyone is interested then drop me a mail at andy_oob AT hotmail dot com - I am based roughly half-way between Edinburgh and Glasgow. Price negotiable.