Great advice, thanks Bobster.
17 - 55 is off the cards. So is the 24 - 105.
Although you do have me worried about the back focus issue on the 2.8 now ... having a read around to see if it's a common problem. Will also take a look at the Tamron too.
My ideal flash is the 580 II ... guess I just have to save those pennies (and thanks for starting me off with your 2
