In the "affordable" camera segment of Canon's lineup, only the Canon 7D and the new 60D have the new, color-aware light metering
The more affordable Canon 550D / Rebel T2i has the same color-aware metering system.
Canon EOS T2i (Rebel T2i, Canon 550D) Digital Camera - Full Review - The Imaging Resource!
Ah! I'd forgotten about the T2i. Thanks for the link, but it's not quite "the same" metering system in the T2i and 7D. As per the link you provided, "The Canon T2i now includes a 63-zone iFCL sensor, which stands for Intelligent Focus, Color, and Luminance metering. The name hints at how the sensor works: the iFCL chip has a dual-layer design with each layer sensitive to different wavelengths of light, allowing subject color to be taken into account when determining exposure. Information on focusing points is also taken into account in metering calculations, and it is in this area that the Canon T2i's iFCL chip differs from that of the EOS 7D, accounting for fewer focus points in the consumer Rebel camera than its prosumer sibling. Like the T1i before it, the Canon T2i offers nine-point focusing with a central cross-type f/2.8 focus point, rather than the 19-point AF of the 7D. The focusing screen, likewise, is of the etched variety, and not the fancy LCD overlay on the Canon 7D."
This is similar to the way Nikon has 420-area measurement in the consumer models, and 1,005 area metering in the higher-end models. As I understand it the 7D and the EOS 60D have "the same exact" metering system, while the T2i has the stripped-down,slightly lower-spec'd system, kind of the way Nikon bifurcates its metering systems, always keeping the "best" technologies in the higher-priced cameras.