Unfortunately weapon abilities use weapon dps instead of damage now, which greatly lessens the advantage of slow weapons. They are still useful mainhands for old-school weapon procs (ie, landslide), as those proc rates are still based on weapon speed.
For enhance shammy I would say soothsayer's chest and getting at least one epic 1h weapon are the main reroll options. Cudgel of Naralex might be worth it for landslide - not sure its worth shooting for over just any epic 1h. It'll depend on how many times you want to reroll. Maybe some other shammy can to chime in...though not sure how many there are since enhance missing key skills and is rather lackluster at 20.
Also pacifier is a str 2H and not relevant to enhance shammies.