Lpc2000

Sorry if someone's already mentioned it, but big, dobbering ground planes are 
the single most effective way I've found over the years for helping with 
this.  

There was one board that we struggled with for ages. I kept telling my boss we 
needed to go multi-layer. After wasting weeks of time and loads of money he 
finally agreed to trying a multi-layer board. Guess what? It passed no 
problem after that.