I'm in Australia... Nook not available here so its never been in contention. I'm thinking of doing the 2 reader thing, I've decided that I have too many DRMd in each format, and dont want to bother with stripping the DRM. So, first up will be the Kindle, I think, because I can make do with my PRS650 and idevices for epub. Lots of options for reading on those, not so many for mobi/azw (Kindle app only)
Anyway... just had another huge other expense so its all on hold for the moment.
Thanks to all