I wanted LEDs that had about an 880nm wavelength so it could be picked up by any standard webcam. I also wanted the LEDs to have the smallest viewing angle possible. Though, I wanted them to be cheap as well. I ended up getting the QED223-ND LEDs from digikey.com.
You can find these LEDs here: http://search.digikey.com/scripts/DkSearch/dksus.dll?lang=en&site=US&WT.z_homepage_link=hp_go_button&KeyWords=qed223-ND&x=0&y=0
These LEDs were 5mm big, they had a viewing angle of 40 degrees, and they had a wavelength of exactly 880nm. The peak current is 1.5 volts, and they draw 100mA! Here are some performance curves for the LED:
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