I found this site a while back through a different forum. Prices look ok.
http://www.a123rc.com/goods-468-Exci...TIC+CELLS.html
6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW