Its a 1976 CB550F that I purchased 2 summers ago at mid-ohio vintage days for $900. When I purchased the bike it was pretty much bone stock except for the paint and comstar wheels, then over this past summer I started collecting parts to make it a cafe' bike. I did all the work myself the mods include: velocity stacks on the carbs, sigle cafe' seat, clubman bars, and custom tail light. I have a set of italian tarozzipaolo rear sets that I am fitting up right now. I love the bike, it sure puts a big smile on my face when I roll up to local gatherings on my Univ. campus when all the other rides are Harleys, R1's, GSXR's and CBR's, especially when they spent a couple hundred on their exhaust and I spent 5 mins making mine 10 times louder and better sounding.
Here is the link to some pics of my bike, enjoy.
http://community.webshots.com/user/AZCB550F