My code is almost done, so I'll start creating a prototype PCB (with eagle probably). Now comes the question on AVR and the power source. Is a 7805, like the ones found on most boards enough ? I found some boards using more advanced regulators (LM2594-5 for example). I'm looking for stability....
Bonus question: is there somewhere a basic schematic eagle file with PS, max232, crystal, JTAG, ISP ..... I tried several projects but couldn't find the "dream" one.