RichardH has already put this up over at Pinkfish but, just in case you don't frequent there or haven't seen it, there is a very good deal on a temperature controlled solder station at Maplins at the moment. Part number N78AR for the solder station at £9.99(usually £29.99) and, I think, part number N79AR for a set of 3 spare tips. Good value, IMHO.