Not sure if this has been answered yet But I will chuck in my ten pence.
I am from the UK. I have a standard size basic southord set (4pc) and a Goso Slimline set (15pc). I try and use the standard size short hook as much as possible - however one of the UK lock I have to practice on can only be attacked with slimline small diamond (cant even hit the pin properly with a small slimine hook).
So I would personally reccomend getting a standard hook, standard diamond, and standard snake rake. I would also get slimline versions of them with a couple of different sized hook and diamonds chucked in.
The slimline Goso set was the cheapest slimline I could find in the uk - I cant really complain about them apart from the "cheap" feel compared to the southords I have (but hey they were have the price of the slimline southords). however this set has ALOT of rakes which I dont think a beggineer would need (I prefer the snake rake to any of them).