The only good thing about worcell battery is the price is inclusive of postage. I got their battery for my mobile phone, I find it is not as good; the battery life indictor is not accurate. I can't say for sure if this will apply to their "NP400" battery. As for Eastgear battery I'm using it as well and it is good, 250 pictures no problem. 2 of these covered my recent holiday.
Prices in australia is a killer when I had to get a AA charger in Sydney, it was 3 times the price here.