OK I did a bit of a search on here and couldn't find any threads with this subject. I'm looking to upgrade from a D80 to either 5D Mkii or D700.

Advantages of the Nikon is that I possibly wouldn't have to replace the lens's that I already have (please correct me if you think that I should) and that my wife also shoots with Nikon and we could probably share some gear (although she isn't really that serious and doesn't like to even change lens's).

The main concern that I have is that the Nikon has only 12ish Megapixels and the Canon 21ish. I'm looking to get more serious about landscapes so printing large is probably going to be part of the brief. I like all the other Nikon features over the Canon but this one feature seems to be a bit glaring.

I've also noted that the other photographers on this forum and others whose work I most revere, from what I can tell shoot with the 5D mk ii.

So, anyone with the D700 or 5D mk ii that has done the research and picked one or the other please pipe up.

Thanks in advance.