I don't drink it often at all, but I've always been partial to a Special Brew - they are a great lager, and well worth giving one a go if only once. They are well made and to me far tastier than a Bud or even a Stella. I used to take a 4 pack for a days festival drinking. Far fewer wees to contend with!
Loads of great advice above, but to add, I'd drop into to wilko and grab a fermentation bucket and any tinned kit that takes your fancy and brew it as described. Once that is brewed and then in the keg try something a little different, but get a least one standard and by the book brew in to test out the basics and the kit.
Adding more sugar will increase the strength but will make more cidery - and not the nice Special Brew taste, which is extra malt and the right yeast. Enjoy! And keep us posted on your journey please!
If you are on a budget post to gumtree and similar locally looking for a second hand fermentation bucket and keg - you might get lucky.