Some cheap (ish) tyres in our sizes:

[SCOTTIECTR]

http://www.blackcircles.com/warehouse

 

[Welsh-Rich]

I've used these, very good company with a failr large discount above normal places.

Kept me informed right the way through ordering and they were ready within a day to fit.

Unfortunately fitting garage was another story, and now need to get 2 wheels refurbed :evil:

 

[mikegsi]

seem canny enough