Pricing: See my post, it is in there, just use an on-line convertor for US or such. Weights i am not sure, but not heavy at all IMO for the strength they offer/in comparison with many other locks. Online shop, well i don't know any right now: just type in the make and model number and you find quite a few i think, though i am almost sure the Dutch (web)shops offer them a lot cheaper. Plus i don't know if US sites carry them, def. German, British and Dutch ones though.

Edit: i converted the pricing for you, if the Abus is E 34 that makes a bit under 41 US.
If you find the Axa for E 18, that is a a little under 22 US.