At the moment I don't have a backup body to my d3, I sold the d300 a few months back

If I'm doing an important job I have access to another d3 as a backup, but it's a bit of a pain

I'm also liking the idea of a more compact dslr with video too as a general family pic snapper. But it also needs to be good enough to be a wedding backup if necessary. I don't mind second hand but I really don't want to spend more than $1000 or so

I'm thinking a d90 ?

Whatcha reckon ?