Watch out for the batteries.
I started with a 300D – and got fed up having to keep changing lenses (static, then flying) – so I bought another DSLR – this time a 350D (body only).
What I hadn’t appreciated is that the 350 has a completely different sized battery to the 300.
So now, when I go on my annual pilgrimage to Russia, I take two cameras (300D & 350D), three lenses, six batteries ( 2 x 3 for each camera) PLUS two lots of battery chargers!!!!
I may indulge myself and swap the 300D for a 400D – at least it has the same batteries as the 350D and I can ditch one lot of batteries/chargers.
Of course, if you only have one camera, it isn’t a problem.
Ken