If you have a studio you would like to work for in mind already try finding out what programs belong to their workflow and take the time to learn them. Tho some studios might have their own set of tools not shared to public there is very little anyone could do to prepare for those except being a fast learner.
Then there's the issue of being noticed. Getting into mod projects is a great way to learn and hopefully get a job in this industry but you better keep making portfolios of your work as you progress so you would have something concrete to show if it comes to that.
Secondly being good at just animation tools isn't enough these days it might get you a few month contract as a fill in somewhere but you have to make your self an ace of all trades to get a steady job, specially if your aiming for a designer job where understanding scripting languages like Perl to Mel and Max scripts could be an vital requirement as well.
Good Luck
