I'm looking at the two radios now.
The Yaesu 8800R:
Welcome to Yaesu.com
The Icom 2820H:
IC-2820H Dual Band FM Transceiver - Features - Icom America
Icom 2820H Diversity reception (best signal - 2 antennas)...
ICOM IC-2820 Diversity Reception
The Icom seems to have all the features the Yaesu has, and a few more- as well as having the optional Dstar function if you want that.
I have also read online various users complaining the Yaesu's buttons and knobs were too easy to move, whereas the Icom's felt more sure, and didn't move from where you set them as easily. Also read that the buttons on the face of the Yaesu didn't have any sort of protection against dust etc.
Pretty sure I am still going with the Icom when the time comes.