Which Board?

Hi All…

I know I need a 5V board. The Arduino outputs will be pulsing to a PC parallel port and that requires a 5V logic signal. The board I think I need is the Pro 328 5V/16mHz, but I want to buy a board better suited for prototyping first. Is the Uno basically the same board? Will my project developed on the Uno port directly to the Pro 328 5V/16mHz? Or am I better off just buying the Pro and dealing with the minor inconvenience of not having connector sockets and such during prototyping? I won’t be needing any shields, just the board, a couple analog inputs a few outputs to the PC and a couple outputs to light LED’s.

Thanks