"First, I need something along the lines of Adobe Photoshop"
Gimp, ImageMagick, CinePaint, or RubyMagick.
"Second, I need something to do web development, I was using Homesite 5.5 from Macromedia"
Quanta Plus, Bluefish, WebMaker, Screem, Toppage, WebDesigner, ScriptEditor, August, Coffeecup / Linux, FCKeditor.
"I also was wondering about a good media player, preferrably one that you can listen to the radio online"
xradio, cRadio, Xmradio, RDJ, RadioActive, XMMS-FMRadio, Gqradio, Qtradio.