My very own sunroom?

A sunroom all my own would be the most wonderful thing ever! Since my husband works from home, it is a necessity to have a second bedroom in our new place that he will be able to use as an office. Being able to close the door and leave it all behind will help a lot (he is currently working at one end of our living room). But my own private reflection, meditation, sunny, soak-up-the-sun-like-a-cat room would be pure luxury. It is something I have been wanting since we first moved to Chicago.

What would I buy first? I think some nice light-weight curtains are in order (10 or so for $200) with curtain rods for $200. Then a nice desk that saves space when not in use for $1100. And a funky chair for $200 (why did I pick the lime green one? I am really not sure!). Of course I would need some pillows to lounge around on the floor with and since I can't pick between all the really cool ones here, I will just allot $400 to get a variety. Also needed for the floor is an awesome rug and rug pad. For the evenings, a cool lamp would definitely help. Leaving $100 to get the whole thing painted!