Hi! Thanks very much! :)
Yeah I know the rattling - it was a problem with the fiesta I had, although it was super fun to drive! Your right the newer stuff is massive, I know everyone wants more space but does a focus really need to be that big?!
I do have a yellow light - but to be fair I've had the car for 6 weeks, the lights been on for 2 and there isn't any difference in the 'weight' of the steering at all. I'm praying that its not going to be an expensive problem (although I've had a quick search around and most people with the same problem are saying it needed a steering rack at a cost of £500ish!) so fingers crossed!
I knew I should have opted for a shiny new one instead of a used one!