Concrete 1 - Camera Nil

Had a lovely day yesterday down the city, managed to shoot nearly a full card and was looking forward to uploading them onto the pc when disaster struck. I headed out back to finish of a few shots at home stepping over a small gate i misjudged got caught up and went face first into the concrete. Luckily i managed to save myself however the camera took the full force of the fall and broke apart around the controls at the top of the camera.
I figure it wont be worth repairing as its only an Olympus E300 and the repairs would exceed the replacement cost, which is a shame as it has served me well over the past 2 years and up to now has never been dropped.
I have been considering an upgrade for sometime now and am leaning towards Nikon or Canon, so my question is besides the obvious price difference what benefits do the FX have over the DX format cameras? Image quality etc. (Still learning this digital stuff.)
Haven't decided on what to spend at this stage.
I mainly like shooting landscapes, people and motor sports on the odd occasion.
Thanks.

I figure it wont be worth repairing as its only an Olympus E300 and the repairs would exceed the replacement cost, which is a shame as it has served me well over the past 2 years and up to now has never been dropped.
I have been considering an upgrade for sometime now and am leaning towards Nikon or Canon, so my question is besides the obvious price difference what benefits do the FX have over the DX format cameras? Image quality etc. (Still learning this digital stuff.)
Haven't decided on what to spend at this stage.
I mainly like shooting landscapes, people and motor sports on the odd occasion.
Thanks.