I still also take my 5d2/24-105 with me alongside the IR G1 and G3, plus the 14mm, 20mm, 14-45, and 45-200, I am a bit undecided as to what exactly I need, but I am tempted to add the Samyang
7.5 fish eye and sell the Canon fish eye as that would be a more flexible than the Canon which will not give me 180 deg the IR 40D.
A day trip to to the Fife coastline and collect a 100-300 and/or the 7-14 from Kerso's sister also sounds appealing

I always collect my purchases from Kerso and give my better half and the two pooches a day out in the bargain.