There are many free PCB design software you can use to design the PCB yourself.
ExpressPCB: **broken link removed**
Cadsoft EAGLE (freeware with limitation):
**broken link removed**
PCB123:
http://www.sunstone.com/pcb123.aspx
DesignSpark PCB:
**broken link removed**
DipTrace (freeware with limitation):
http://www.diptrace.com/
TINA:
http://www.tina.com/English/tina/
gEDA:
http://www.gpleda.org/
KiCad EDA: **broken link removed**
There are other free PCB design software available as well.
So, download one. Go through the manual and start using it.
I've used ExpressPCB and PCB123 (a little bit of EAGLE as well). I'd say they're pretty good and certainly good enough for your purpose.
Hope this helps.
Tahmid.