I feel like I'm towards the end of putting together a song, and am starting to think about where and how I'm going to get it submitted to record labels. Are their any particular things to keep in mind when doing this?

I know trance labels fairly well, and I'll be shooting for something that supports the typical melodic trance variety, so I'm sure I'll have plenty of options. Aside from the type of music the label releases, are their any considerations that I should keep in mind?

Also, what are the typical expectations for a producer just starting out?