As Daleyboy is just starting the equipment will cost from £25 up to £60 if he buys a pressure keg (which may end up in the attic if he doesn't take to brewing).
A lot of bargain supermarkets use stock close to its sell-by date, I often drop on good beers which are very cheap.
You have to factor in wastage. I use an open barrel and plastic bottles; the first fermentation loses up to a litre in my 50L barrel. I decant my bottles into a jug which can lose 5% + depending on how unsteady my hand becomes or how chilled the beer. Then there's the occasional whole brew lost for reasons unknown or a 2L bottle that's lost its seal and spoiled.
Without guidance a novice will lose brews, e.g., Coopers doesn't state that it's already hopped so a newby might not clear the chlorine in the water and finish with 40 pints of TCP.
Home brewing can be a great hobby if you get past the pitfalls but I think it's too much of a hassle.
I've made beer, of necessity, for 30 years around dry arabic countries but when I'm in UK I buy cans in a supermarket. You'll get a better range and it's much cheaper than home brew. Carrying home brew would stir up the lees and make the beer undrinkable.
If you want to "home brew" try the wine kits that use grape juice concentrate. These are really easy, relatively cheap (from £40 for 23 litres) and taste fantastic.
Kill birds? Evidence please as the rspb seem to differ in opinion.
Just one of the many links from asking about bird kills on a search engine:-
On 12 January 2012, at the First Scientific Congress on Wind Energy and Wildlife Conservation in Jerez de la Frontera, Spain, the Spanish Society of Ornithology (SEO/Birdlife) made public its estimate that, yearly, Spain’s 18,000 wind turbines may be killing 6 to 18 million birds and bats (1). The average per turbine comes down to 333 – 1,000 deaths annually, which is a far cry from the 2 – 4 birds claimed by the American wind industry, or the 400,000 birds a year estimated by the American Bird Conservancy for the whole United States, which has about twice as many turbines as Spain.