I have halfords, and other makes socket sets of all shapes and sizes at home, but I've recently bought a 35 quid set off ebay, which to my surprise seem okay. I bought them just to keep in the 110, as I won't be heartbroken if they get nicked, and I figured a cheap set of sockets, spanners, and odds and ends and I should be able to get myself out of most problems.
I've not used them in anger yet, but I think they'll be okay to be honest. Wouldn't like to rely in them, but to my surprise they are hex sockets which gives me some hope they'll not round every nut off, and I'm sure they won't get much use so should be ideal for out and about. For the money atleast, I'm quite impressed.