Here's my current set up:
Canon 30D
Canon 24-70mm L
Canon 70-300mm IS
Canon speedlite 430ex

Im not a professional photog by any means and dont aspire to make this hobby into a job anytime soon. But i do love photography and offer my photo services to several different events at my church and my job. So i want to be well equipped to handle a vast majority of photography situations.
So just recently I got a $700 bonus and i want to drop it into photo equipment.
Now the question is: What?

Im currently shooting the 30D so a body upgrade would be nice and is something i have been wanting to do for a while. But what body should i upgrade to?
50D: in my price range but is it worth the upgrade?

5D mark I: i have come across a couple for about $800. I could probably squeeze an extra $100 if necessary.

7D: out of money range but should i wait and save up more to get this body

1D mark II: i have seen a couple of these on ebay around the $700 range. But $700 for a 10 yr old camera. is it really worth it??

If not a body then should i buy some glass?
these are the ones i was looking at that were in my price:
Canon 70-200mm L f/4
Sigma 70-200mm f/2.8
Canon 50mm f/1.4
Canon 85mm f/1.8
Canon 135mm L f/2

Any opinions and/or recomendations you guys have would be greatly appreciated. Thanks!