I tried to create one on Frappr, but found out that http://www.frappr.com/empeg already exists, albeit without any members. So I added myself and created another one, http://www.frappr.com/riocar, for good measure.

How about adding your locations (on riocar one, I guess, since I am not the owner of the other) and serial numbers?
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Dragi "Bonzi" Raos Q#5196 MkII #080000376, 18GB green MkIIa #040103247, 60GB blue