in no particular order,

Marg Helgenburg (Catherine Willows in C.S.I Vegas) smile, dry humour and laugh.
Amanda Tapping (Samantha Carter in SG1) brains, brawn, confidence and dry humour
Emily Proctor ( Calleigh Dequesne C.S.I Miami) eyes, eyes, eyes

i like older, intelligent, women with a sense of humour, whats a boy to do.