Indeed it is great and exhilarating on the choice of living in Bangalore.
I moved to Bangalore South on Bannerghatta Road, the upcoming residential area! Have to travel 15Kms to Central / Airport.
For 2 months I have been shuttling from and to Chennai, where the family was.... and my wife was finishing up her exams.
In fact tried all modes of transport Air (Deccan, Kingfisher, Spicejet, Paramount and Indian) and Train ... for weekend travel. I felt cost wise no one can beat Air Deccan at about 1100+ for a trip and timewise and convenience by Paramount.
Kids are loving the weather, 4 degrees cooler than Chennai and cold in the mornings and unexpected rains!
But I can see the strains of cos tof lviing on the higher side. In Chennai you are used below MRP 5% or 10%.
So other than paying up 5K PM for the house extra of similar kind, the other expenses would be like, say 5K more.
So if you are negotiating salary, keep this in mind! (after tax). Only thing you might be happy about is Autos, run with meter!