Well i had to pay out for 60k service, tax, tyres and geometry this month so i had a good look for a tyre that wouldn't cost me the earth. I bought 4 Falken FK452 tyres for £240 and they are amazing. They stick even when frosty in the morning or in the wet. I have noticed a very slight increase in noise when on the motorway, but only slightly.
For a decent tyre that wont cost the earth, id recommend the FK452, i will be buying again.
As for getting the geometry done, there are a few places in the north that do it, best bet is to search this site. I live in Manchester but decided i was going to drive down to WIM. The doctor has so many recommendations and satisfied customers. You cant buy piece of mind, you can only drive to it!