making a fpga board
Depends of course of what resources you want to add to the FPGA.
I.e. you can add PHY's for USB, Ethernet, video, ... then add memory (SD/DDR DRAM, ...), flash boot memory (SPI, ...), Power Supply.
You will need to use a schematic editor (like ORCAD, Protel, ...) to draw the schematics, draw your PCB. In the meantime you can build your design to hook all the devices together (functional) and program the flash.
Now when you have built your PCB and stuffed your devices on it, you can start testing.
That's about it - I guess.
Other possibility and probably more reliable: buy one of the existing FPGA board kits. You can find one allready for about $100...$150.
Possible sources for FPGA boards: Altera, Lattice, Xilinx, Digilent, Xess, ...
Hope this helps