Hi Yugurtha,
nice looking circuits (PCBs) is just a matter of personal taste, board requirements, restrictions and limitations.
You can design "nice" looking circuits using Eagle "light", a free version of Eagle schematic and a PCB router. The free version is limited to one schematic sheet and the PCB size of 100X80mm.
You might think about purchasing the "non-profit" version offering 160X100mm PCB size. It costs about US$ 160.
You can also use larger PCB sizes which have been created using a professional Eagle version but with the restriction of moving components beyond the imaginary frame of 100X80mm (or 160X100mm).
The full professional version offers unlimited sheet numbers of any size and PCB sizes of 4,000X4,000mm and 16 layers. (Check out the price at )
Learning to work with Eagle is very easy. Eagle stands for: Easily Applicable Graphic Layout Editor, and that's what it really is.
The autorouter tends to surround itself, other than the autorouter of "NewIO" which ran using Amiga DOS with Commodore PC's. (Commodore Amiga 500, 1,000 and 2,000).
Boncuk