Dont think always SONY is best. Now equvalently SAMSUNG/PANASONIC brands are good.
You dont beleive , even SONY acquire LCD screens from SAMSUNG as SAMSUNG is a large manufaturer of LCD/LED screens.
SONY's innovation is just a bravia engine to fine tune the picture. But other brands also brought the similar technology for finetuning the picture.
A 32" LED imo doesn't make sense.LED don't make much of a difference in power consumption in small 32" size.The only advantage is that the LED-lcd is thinner.
Unlike the D5500 which has more features, the D5000 is just a D550 with a different light source.
If i where you i would probably save some money and get a D550 .If you don't mind buying in grey market the sony CX520 is available for 26k and has a guaranteed SPVA panel.