1. don't get starter guitar packs, they suck.
2. IMHO teaching yourself is better than being taught by a teacher due to you being able to learn anytime and go at your own pace, i also recommend getting a good handbook on guitars, i have one by Ralph Denyer its lasted me 5 years since i started playing.
3. as for amps, you should look for combo amps that have built in effects, instead of buying all the pedals. Roland Cube combos are very good for starters, i got one and its very good and has lasted, if you get the cube aim for the 20XL and above. Line 6 do good small combos so check them out.
4. now for buying a guitar, if you want an SG or a Les Paul then go for the epiphones because its a Gibson without a few Gibson touches like the tuning pegs and headstock, also the Pickups. Ibanez have good cheap guitars for sale look for the Japanese built GIO series Ibanez guitars because they are VERY good quality and are cheap! If you can go for something that's more than £250, then you can find good fender squier guitars and ESP guitars. now if you want to go from £400 up to £700 then you can get a classic Epiphone Les Paul Standard and high quality reissued Fenders, all the way to i Gibson SG.
I Highly Doubt you want to spend £3,999 on one of Eric Claptons Fenders. I've played guitar for 5 years so i now what im on about.