If you're not finding out the sex then I would suggest keeping it as neautral as possible. We didn't know what we were having either so Caitlin's room is tones of beige and brown. I was planning on redecorating within the first year to a more feminine theme, but I think her room has a warm and calming feel to it.
There's also a section on here somewhere where you can see lots of photos of kids rooms, try "fun stuff", or "baby".
Our furniture was mostly made by DH, including the cot but we got some great bargins on Trade Me that we just painted to match the room colours.
Good on you for getting organised now, don't be like me and end up painting at 35 weeks!