Hi there
I'm in London for a few days, I really want to buy electronics components, arduino related, etc..
does anybody know where can I find that stuffs???
I want local places not online Internet stores...
thanks
I'm a Londoner and, sorry to say, I can't think of any interesting local electronic component stores. Most people here mail order.
There is a fairly dull chain called Maplins which has some branches that do components, but generally only a basic selection and not particularly good prices, and most of the staff (with some notable exceptions) know little and care less.
Best places are online stores. Some, like my own 
will ship items out same day as the order in most cases.
If you are in Shenzhen,china, you can come to our studio and get stuffs you want.
But you are in London.LOL
Here is a online store in UK, it's one of our distributor. Take a look at it.
http://www.skpang.co.uk/catalog/
If its not too late,
Rapid electronics a online retailer have a trade counter at their head quarters in Colchester not too far from London.
most of the staff (with some notable exceptions) know little and care less.
cough me
Are you the exception or the norm? 
Hi, I'm sorry if I caused any offense. Since you're here, you understand why people might WANT components, I certainly don't mean you.
the exception 