I just bought the 105's on Amazon and love them. Coming from the M520's it's a tad bit of a learning curve for me. Made a huge fool of myself at a red light desperately trying to get my right foot back in while I was holding up traffic. =x Came straight home and turned the tension all the way down.

i got my shimano 6700 carbon for $150 from Ebay, no regret

Looks like Real Cyclist still has the sale going: http://www.realcyclist.com/time-icli...-pedal-tme0023

Nashbar's Izoard pedals can usually be had for $40-50 and weigh in at 266gr a pair (which is lighter than most of the pedals mentioned here). I've run them for several years with no issue. It makes me laugh because this sort of thing doesn't matter to me at all, but they're often mistaken for the much more expensive Looks (and an industry pal tells me they're made in the same factory in Taiwan :) ), though I would be the first to say I'm sure the Looks are much more durable.