Dude, a DSLR is only as good as its lens, i am not aware of your proficiency with DSLR's before this, but in my opinion, since new 450 has hit street, the prices of 400d came down tumbling which in itself was an amazing camera, buy that with some good IS lense for telephoto and maybee a prime (nifty fifty) or some 28-70 lense.
Also, buy body only if you can and take lenses of your choice.
Also, buy body only if you can and take lenses of your choice.