Scotland Grand Tour 2013

Please can you help with suggestions for sites from Ullapool north on the West Coast. As this is our first full summer of retirement we have promised ourselves a Grand Tour for 2013. Have been as far north as Morvich towing and know Poolewe and Gairloch solo, but want to do the whole north west and over to Orkney. So suggestions between Ullapool and Dunnet Bay please. Plan to do the trip over 6 to 8 weeks so will have plenty of time to take in the area.