Sigma's latest zoom is a winner
Worth the wait and cost?
Canon's latest midrange zoom.
Canon's flagship wide angle zoom
Yes, there is a Lightroom 4 coming. However, buying it for $69 and upgrading to LR4 will probably be cheaper than waiting for LR4 to ship and buying the full version.
Lightroom 3 (win/mac) for $69 at B&H
Offer expires at 11:59PM EST tonight.