WTB: sigma 24-70 2.8 for canon

[vinyljunkie]

Hey guys, Im hoping somebody here can help out a broke college student. I am looking for a sigma 24-70 2.8 for canon. Ive got a couple of low light situations coming up at the beginning of the semester and am needing to upgrade to a faster lens. If anyone has one lying around that you could part with for a reasonable price, let me know.

thanks so much,

shane