(excluding tripod, bags, filters, CFs, Michael Freeman's books etc...)
Before 2010: Powershot A80 and Powershot S5 IS
2010: (used) 5D classic + 24-105mm F/4 IS L
2011: 70-200mm F/4 IS L and 100mm Macro F/2.8 IS L
2012: 17-40 F/4 L
A 430 EX II is coming shortly: the expected delivery date is 7 January.
I don't have thoughts for my 2013 wishlist (a second body, aps-c maybe? a fifth lens?).
But I could simply wait and make a (relatively) high investment in 2014 (6D, 5DIII, who knows?), together with a new computer to handle the new RAW files (my 2007 iMac performs well with 5D classic RAW files, but I wonder how it would deal the >20Megapixel 14bit RAW files).
My 5D classic is still better than me at taking photos.