Import Text to Crate
This is a bit more "out there" but might be useful for quickly creating crates from your current iTunes (or other) metadata.
The idea would be to have an option to import a list of artists or labels and create a new crate from this. I haven't tried dumping a complete list of this data out of iTunes but I suspect it should be straightforward using existing applescripts. The tricky bit would be matching with actual artists/labels on beatport, as it would obviously be sensitive to slight differences in labelling and duplicate entries.
Perhaps there would need to be some sort of follow up process to mop up stragglers? e.g. It displays a page with duplicates/missing entries for the user to decide what they would like to do.
Poss too much work for the benefit but maybe it will inspire other ideas/other users.