Adobe is offering a reduced price to sign up for Creative Cloud through June 25, 2013 for Students and Instructors. The subscription grants access to Adobe's full suite of software as well as some online services.
It will be normally US $29.99 per month, but is $19.99 per month if you sign up before June 25, 2013.
This is an annual commitment which will be billed to you monthly if you choose to sign up. More information can be found here.