I cant see!

While living in the country the more light the better, so I am thinking about adding fog/spot lights? Anyone done this. Btw I don't want the factory ones as I am not so keen on the look.

What's the legal ruling on position and use of spot lamps ? Those led spots look a good way of improving the poor dip beam performance I find as also living in a mainly rural unlit area.

You cannot supplement the dipped beam with anything.

Spots should be wired so that they come on with main beam for road use.

Why would you put spots on without going to main anyway? Spots will dazzle other drivers, so with that in mind, you may as well be on main beam.

Just trying to find a way of improving poor dip lighting which seems to be inherent on 'F's

Fogs help dipped but shouldn't be used unless it's foggy, however with the advent of DLRs it seems to be less of an issue.

Presuming that you have checked you don't have the usual problems with Fs ie the reflective coating has dulled/disappeared behind the bulb, and/or the glass internal lens is fogged over, then fit some uprated quality bulbs such as osram nightbreakers. These bulbs are legal(55w) but put out about twice as much light as a standard 55w bulb. I have them in my F and the dipped headlights are fine.
Don't be tempted by ebay 'super bright' type cheap bulbs or increased wattage ie 100watt bulbs. The former are rubbish, the latter are illegal and could cause issues with melted electricals.

Something like these Nightbreakers

I got a pair of Osram Nightbreaker Unlimted Plus for my Jag from
Driven2automotive.com
a little while ago for about £12 plus vat for the pair.

They still have them and other versions, H1, H7 etc for that sort of money.

They work really well in the Jag and I will be putting the, in the F at some point

Having just done my 1st night drive in my 02 TF, I was not happy with the light out put, so will be fitting nightbreakers on the dip beam.
According to some reports, there have been issues fitting improved main beam bulbs [HB3A]?
Also the beams appear to be directed too much on the L/H curb & I would like more light centrally.
Is there any horizontal adjustment?

There are horizontal and vertical alignment adjusters.

I've been using my F quite a bit at night recently, the light pool on the road on dipped beam is not brilliant but the total light is actually not that bad, the road signs several 100 yards ahead are glowing, full beam is great. I think the real issue is the height of the lights and the angle they are required to dip at, not much cure for that.