hey sparkin, glad your boys on the mend.
  for anyone thinking of replacing their boiler, if you leave it till after 1st april you will only be able to have a condensing boiler fitted
 this is to conform with the governments new part L  energy efficiency regulations. 
 although condensing boilers are slightly more efficient than regular boilers, they are initially a lot more expensive to buy and along with the extra controls/pipework & extra labour to adapt to your heating system, they are considerably more expensive to have installed. 
 for a guide to how much it will cost, get a quote from british gas then half it
 that should be about right
