Argh! So many gems! At least I have enough time this week to give a fuller account. particularly liked Skyew's 7, Seamus @8, Faraday @14, Marty @16, Rosalind @17 Steve @19 Dorrien@30, Mattrom @35, Steve again @37, but by a whisker the exquisically parsed Aristo@36 nails it for me (probably would have missed it without Jazzies help and Chris' enquiring scientific mind....)