In reply to alexm198:
You've got the juices flowing again!
Flight from Gatwick or Luton to Edinburgh or Glasgow at between 1800 and 1900 on a Friday evening - about £100 all in. Hire car (£100) to Fort William and be tucked up in bed by 1100.
Drop the hire car at the airport and get a bus/tram back into the city to get a sleeper back, which leaves at about 11pm. A two bed compartment is £100 each. That gives you two proper full days and dumps you back into the office by 0900 looking 'experienced'.
Evening train is possible but as they get in at about 2200 the car hire places in town are shut, which means you need to get out to the airport which drags the whole thing out.
Call it about £300 a head for two or thereabouts.....
I tend to go for the Thursday night to Monday night thing (sometimes first thing Tuesday morning) by Easyjet
Zurich works really well for that as the evening flight back is at 2100.
Haven't driven overnight for years. Last time, we left at 8pm and got to Fort William at 0400 and started walking at 0500 and still weren't first in the queue for Point 5 (they started walking at 4). Followed that rope of three up it, and were in no fit state for anything the following day. Memorable though - my eyes froze shut in the chimney with all the spindrift coming down. Drove overnight to Aviemore once and stopped somewhere near Glenmore Lodge when the car wouldn't go any further. We woke to find another six inches of snow on the car.