The all important question.. How to get started well theres not really a right way and a wrong way to get started, once you've learned the basics then its plain sailing. I would reccomend learning how to cast either with a profesional or just picking it up which is harder but there are always other fishermen willing to help. As for tackle it really depends on your budget, you can pick up a cheap rod and reel set up for around 40, 50 pounds but if you know you are going to stick at it then you would probably be better spending a bit more e.g. around 50, 70 pounds for the rod ( i would reccomend the Vision Attack 9'6" for a 7 line around 70 - 80 pounds ) reels you don't have to spend a lo0t of money on at all, all its there for is to hold the line the rod and line are the two main components ( so for a reel i would reccomend a Shakespeare Alpha 7/8 they are around 16 pounds with a spare spool ) line? well for your money you can't get much better than a Barrio Mallard line.
Then all you need is a fly box, leader and the all important flies, when you go to a fishery you will find out what works the best there and at what time of year to start off i would reccomend a couple lures ( cats whiskers, Fritz and WSWs) they are i think the easiest to learn with, a couple buzzers and some wets and dries. As for fishery i Would reccomend Haddo and Loch Insch both of these places have space for back cast and there are freindly people there always willing to help.
Hope this helps,
Jay