Take a look at PCBExpress for the PCB layout program - not as powerful as Eagle, but a much less learning curve.
If you wish to do your own PCB boards, "IF" you can find the GBC personal laminator over there at a decent price, that's the way to go rather than iron on - here in USA I order the laminator direct for $25USD shipped... and it works like a champ!
Good luck and have fun - oh, and by all means, use the Arduino for breadboarding and developing the project, but once it's working, move the uC to a fabb'd up PCB for a stand alone working product.
This stuff is the most fun - and this group is the most helpful around.
Ken H>