Coming to London
Travelling within London is mostly via the London Underground, which typically costs about £3-4 per journey (It very costly!) and not particular the best in the world, its stable but on international scale, it would be rated as below average(compared with transport links of tokyo, singapore, shanghai, germany.. miles ahead and much cheaper). Food is next. Average decent meal out would set you back £10-£15.
Renting in London would be approximately £100- £150 per week. This price would get you just a double room. A 2 bed room flat would cost about £400-£500 per week. Again this would depend on the location.
Studying in London
Remember to ask for grants. There are overseas student grants/bursary. if you are interested, visit the local british embassy to see if there are grants. or you can check their website.
Check the school fees. Its quite different from uni to uni. The last time i saw, its about ~£8000 per year for foreign students. Tips: Students in UK are allowed to work for 20 hours per week. and most uni students work here to cover their expenditure and get experience.
End of the day, no matter what the course is. Popular Unis are good. if you applying for UK universities, you have to go through UCAS. you can also visit their website for more information.
The best thing to study in UK is you get to travel alot. I mean ALOT! .. not only locally to scotland / ireland but also to Europe. The flights from UK to various european countries such as france, belgium, germany varies from £20 – £100 return. In some cases, there are £1 return flights which are cheaper than local bus travel.
Paintball at PaintZone Surrey Croydon at Salmons Lane (£29.99) with included lunch
Karting at Mile End (£10 / 8 laps)