I had a bike shop do this with a Cannondale CAAD 8 that I bought inexpensively ($400). The conversion cost me about $125 which included parts and labor. I really liked the bike a lot more with flatbars than the drops. I wish the bike had fit me a little better - a bit small - so I sold it for $600. I keep looking at craigslist hoping to find a 58cm road bike that I'd like so I could try the conversion project again.