I have a 5D2 and 7D. I spent about $100 including shipping.
Personally, don't change your order. The 50mm 1.8 is a great little lens and an awesome addition to your lens collection.
50 f/1.8 - shame about the nasty bokeh though - just look at those round christmas lights
It's a cheap lens, but once the bokeh is tamed it's a great lens for the money.