incrediBILL - 6:42 pm on Sep 25, 2010 (gmt 0)
When you buy stock images make sure you know what usage rights you're purchasing.
You may be only getting "web only" rights, meaning that if your client were to run a TV commercial or a print ad, etc. showing that image he doesn't have the rights to do it.
Just double check the rights being purchased vs. clients complete needs and you'll be OK.
If there are other usage fees for other uses, make sure the client gets a copy of that information so he will know where to go to get it if needed.