Onlineshoes.com sells Bates Lites, and you can get them on Amazon.

$200 on OnlineShoes, way overpriced. http://www.onlineshoes.com/mens-bates-50501-usmc-lightweight-durashocks-olive-mojave-lthr-nylon-p_id89640

From $137 on Amazon http://www.amazon.com/Bates-U-S-M-C-Lightweight-Uniform-Man-Made/dp/B000G61C6E/ref=sr_1_1?ie=UTF8&qid=1360200845&sr=8-1&keywords=bates+50501

I will add as a side note -- you don't need Bates Lites to get through at OCS. The only thing they might help on is the E-Course. I wore my Jungles without a problem during all the PT events, and most people do the same.