If your shaman is your alt, you'd really only be looking at 2 specs:

1. Elemental for extra dps

2. Resto for a heal bot.

Since your running a druid, I'd go with Elemental. I wouldn't wast time on Enhance, becuase as you have already found out, setting alts up for melee damage is a pain. Also keep in mind that ToW and LOTP will stack nicely giving you a 8% extra crit. The only catch being you won't get access to ToW until level 50 as its a 41 point talent.

Cheers,

Stealthy