I think you should get a Macbook (after June), a console game (like PS3), and a 2
6" or
32" LCD TV. That way you have everything you'll need. You can watch Bluray movies (Netflix has a nice selection of BR and buying them used on Amazon is nice too), and upscaled DVD's using the PS3 as well.
When you want to watch in bed on MB, you have iTunes and can watch DVD's, etc. You'll have the PS3 for gaming and a media hub for music, video, and can surf the web with it as well. You can connect your MB to the TV to watch iTunes content as well.
MB: +-$1,500
PS3: $399 + $60 for HDMI/DVI and HDMI cable
32" 1080P TV: $900
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Total: $2860 (enough left to cover shipping from Newegg and Amazon for TV/PS3/cables)
As for WOW, you can play it on the MB. The FPS's can be played on PS3. You got everything here to make your college years super fun, and it fits into the budget your parents gave you (assuming you use educational discount or refurb for MB, and/or purchase TV and PS3 online to forego paying tax, and ask for Apple Care and PS3 games for birthday or xmas.

Good luck to you!