Wow. I follow this forum every day, but have never posted in it. I just have to speak up at this post. What a great opportunity for you and a very fortuitous one at that.
This might sound silly but I'd be tempted to go for both, try out each to see which you prefer, then sell the one you like least - because at those prices you could probably re-sell to cover the cost of the one you decide to keep.
For what you are using the camera(s) for I think you'd be happy with either. The expense will come when you upgrade to the full-frame lenses.