EFWD
Check NTE (nteinc.com) for the round switches. They make snap in or threaded switches and are available from many different sources. Prices are pretty reasonable too.
I went with the illuminated round hole rocker with the square bezel. I also put a dimmer on the switch so the LED can be turned down or off. These are rated at 12V 20A! There are a couple panel pics in my photo album
Theres a document out there somewhere that details how to derate switches for AC or DC use. I thought it was on the ray allen site but I cannot find it... Maybe someone else knows where it is.
Found it...
www.bandc.aero/pdfs/Switch_Ratings.pdf