Since getting the Ricoh GR-D a few weeks ago I've had mucho fun with it. I have grown to understand the controls and find them so easy now. On my ADJ. button I have ISO, Focus metering, Light metering and something else I forget at present. I use the zoom rocker for EV comp.
I switched back to my D50 a couple of days ago for some self-portrait work and man, only having the one dial suddenly made me realise how useful the GR-Ds controls are and what people meant when they said they wished the D50 had two. I found it positively cumbersome to try to change settings, having to remember which button to push whilst turning the dial etc. It's still a great little camera, don't get me wrong - but now I'm lusting after the D80.
However, I can see it being a very long time before I could afford one, even if I traded in my D50 first. I'd say a bit of over-exposure isn't a problem seeing as though you will more than likely be shooting RAW and will be putting it through some RAW conversion software when you get it out the camera - exposure is a doddle to correct in RAW.