You have a 5200 and it just went up now?
Wow.
There was a problem with a batch of the 5200's, something with the power supply I believe, that caused a bunch of them to go up in smoke. Its an acknowledged problem, and I'm sure Marantz would replace it no problem.
I wouldn't discount Marantz just because of one bad batch. My later generation 5200 has worked perfectly since the day I got it.

The 3803 seems like a great deal though.