London to Bovington, advice from english pals appreciated

[nikoda]

Good afternoon all :)

My wife and I are planning a few days trip to England, London, by the end of June, to see a friend of her married with an englisman, and also to play the tourist litte bit :)
But I "secretely" plan to leave Madame in a very single escapade to visit the Bovington Tank Museum / Surrey.
I got some usefull infos displayed on the museum web site, but i'm facing a problem to find out the way to go !
I know The Club is not a travel agency, but infos i got from the Net are little confusing to me, and i got only one day to enjoy this trip.
If any members would be kind enought to advice me : Which road station would be better "suited" for this trip ? If there any company specialised with this direction ?

I would be very gratefull

Ps : if this is usefull : i should leave London from the northern suburb area named Enfield ( like the riffle ?)

Thanks in advance !! :)

+++ Nicolas

pps : if by train proved to be far more better, i'm not "racist" about this mean... I just enjoy more the landscape by bus :)