Your nearest re-seller appears to be KRCS in Nottingham and they will undoubtedly have the beast to see. I fell out with KRCS when they bought our previously reliable shop in Kidderminster. The price is much the same from the applestore direct.

You are right to go for the twin processor beast. The cost may seem high to begin with, but I have been buying macs for nearly 20 years and never regretted paying out for one when it was newish.

I have had good value out of the 3 year extended warranty on my powerbook. There is a wealth of on-line info on problems and have never been failed by it.

If you want an actual shop the one here in Tewkesbury is good and service dept always helpful.