Steve,
I'd suggest getting yourself along to Sportfish at Theale [Reading] They aren't the cheapest in the world but you should get good quality.
Scissors get good ones for cutting thread, get not so good ones for cutting thicker materials such as wire and tinsels. Make sure you use them for what you bought them for!! Be prepared to renew on a regular basis.
Vices I personally use the Scottie Vice from
here excellent quality at a reasonable price. You can buy cheaper.
Bobbin holder with a Ceramic tip [buy a couple]
Dubbing needle, you can make one with a needle pinched from your wife's needle box and a piece of wine bottle cork.
Hackle pliers if you intend in to tie hackled flies.
If you are ever in the Anglian Water area their tackle shops have a good supply of materials and tools.
Basic materials would be tying threads in black, green, red, brown.
Pheasant tail feathers [male mostly] you can get dyed ones as well.
Peacock herl [green and bronze[leave green in the sun]]
Various colours of floss.
Cock hackles in various shades [game is good]
If you want to fish lures black chenille is good, partnered to a bright fluorescent green wool.
If "Blobs" are your bag get the Flash Attack Fritz in lots of gaudy and bright colours.
Hooks buy the best you can afford, Kamasan, Tiemco for example Drennan if they still do them are also excellent.
I could go on for hours. but!!
Loads of fly tying tuition on Youtube! Go do it.
Colin