If you are only going to do 2D parts with the router the Cut2D program from Vectric is priced very reasonably, posts toolpaths very quickly with a great simulator included for around $150 I think, but it does not include a CAD program. If you need both CAD and CAM, Dolphin CAD/CAM USA has many packages for different needs at very reasonable prices and you can find their authorized reseller on eBay also. There are so many programs available so it may be good to download some demo versions to see if what they offer will work for you and choose the one you like best. I'm sure someone else will probably suggest other choices for you. Good luck and I hope you find something that works good for you!