Hi all, I'm looking to make more of a serious leap into photography and it's time to get some serious L-series glass. I'm looking around the $1000-1500 mark and some early considerations are the Canon 24-70mm f2.8 L or the 135mm f2 L. Options are further complicated by the new 24-70 mark 2... (worth waiting for it to get cheaper?) Currently I have a Canon 40D with 50mm 1.4, Tokina 11-16 2.8 and Tamron 17-50 2.8. I'm looking at upgrading to the new 5D Mark III next year and would like to build on my lens collection in the meantime. The 50mm is typically on my camera and I'm a fan of portraiture, low-light and event photography. Any suggestions/experience/advice would be great. Cheers!