I'm just back from Japan again, and I was in Akihabara looking at airsoft stuff. They have some incredibly good deals there on TM stuff. Saw a new G36 (with no batteries or anything) for ~$195. I also got a bag of 2200 0.25g Excel BB's for about $7.80 and a battery discharger (although I was taking a chance since I couldn't read the package) for $7.30. See pic.
I think whenever possible in the future I will try to buy my accessories in Tokyo
They had a great selection of accessories too. So, if you are ever in Tokyo, I suggest going to Aso Bit City in Akihabara. Their glass enclosed AEG range is way cool too.