To start with I have been going a long with a Canon 1000d to some weddings as a bit of a second shooter/assitant. I've found many times I need iso 3200 which my camera doesn't do! I use a 430exii when I can, but sometimes we are not allowed to use flash indoors.
I'm on a very tight budget, and only have £300 ish to spend. I've been considering a used 40d and grip, or possibly a 550d. In an ideal world the spec of the 550d combined with the ergonomics and build of the 40d would be ideal. Are there any other options I should consider? I would love to make second shooting a regular thing, so bearing that in mind I don't know what to do. I should add all my memory cards are SD not CF so there would be added expense there, and my budget comes from selling my current camera and other bits so a faster lens isn't an option.