ok i'm done with the 0805 10uF capacitors, and mostly-done messing about looking at the gerber files for areas where ground tracks are missing. currently i've added a keepout area around the DDR3 lines because that's what i've seen done in other designs.
gotta get moving on this, richard - it'll be another 5-6 weeks if we miss the window of opportunity before chinese new year.
l.