For ipod charges I would never dream of going directly to Appl. I always get mine from Ebay.
Quick search and this charger is mega cheap.
http://cgi.ebay.co.uk/UK-AC-WALL-CHARGER-IPOD-TOUCH-3RD-GEN-3G-32GB-64GB-/230471422483?cmd=ViewItem&pt=UK_CE_MP3Access_RL&hash=item35a92ad213
HTH.