If your school is part of some purchasing program with Adobe, you might be able to get for a bit less, like $150 or so. Seriously though, $200 for PS Extended is a hell of deal. It's 80% off. If you plan to use it professionally, just pay it. Skip the coffee and beer for a few months if money is tight. Remember, it can be upgraded to a future retail version as well. You basically have a ticket out of ever having to pay the ungodly retail price for a legit copy of PS. Take it while you can.
And please don't pirate it. It annoys me to no end the students I meet who think this is an acceptable way to get the tools they need. It isn't. You also don't want to be relying on cracked software for jobs or assignments. Something goes wrong and the app shuts down while you are on a deadline, and you are $%*#ed.
lol