I agree, I would go Lipo too. Or get the Trak Power if you are going to 2s1p...better discharge rate for the buck too :)
If you want nice packs, get some Nimh for now, and save you bucks for lipo....it's worth it in the long run, and really, if you treat your packs well, they are not that unsafe.
"if you've got something to say, say it peacefully"