There is a store "Waves Telecom" at CMH Road, Indiranagar. IMO, he gives proper pricing. Sangeetha (on the same road near KFC and closer to 100ft road) was 500-1000 Rs more last time I checked. I bought an E51 for my dad from this place.
There is one more store on CMH road near Karnataka Bank (on the other side of 100ft road). I don't know about pricing though.
There is a store at the entrance of Church street (first street off Brigade Road) but I don't know how it is.
I have seen Univercell near Madivala. I'm unaware of other locations but I'm also keen to find out where other locations are.
Then there's Croma in Eva mall, Brigade road but everything is overpriced there. I suggest you check it out though as you can actually hold and try the models our for yourself.