There are several packages which suit basic PCB design, a program called PCB Wizard comes to mind and you can import Crocodile Clips (Simulation program) circuits into it. It can do single and doublesided.
Here is a link to lots of packages including freeware and trial versions Here .
Let me know if you have any problems creating the artwork or etching etc. .
if u know ur circiut diagram u can draw it on "Ranger 2XL"
and place all your componants thast you have in the circiuit diagram in a fixed area (you draw it) and click a button and it auto routes the wires onto the pcb templte it also suports multiply side, layered pbc's
i have the licence tango_man but i dont want to upload it as its the one from my school LOL plus you will need to set your clock to 7/7/2002 u wont when i go back as i will get the update for it lol plus i will try an crack it later easyer then
the orginal one i sent to him for replacement 7th july.
still waiting for it. trying to build an new one for the willem and ezo flash prog, useing a different tsop test socket from rs.