Good luck with that one! Sorry I can't help, I've bought stuff way back that lasted, but alas as you've noticed most stuff now resides under the: 'cheap and cheerful' banner....
I had good results from RGM back in the day, but with their current offerings going for under £7 I'd guess they're either phenomenal value or cr*p... (Apologies to Roger and Co.) Might be wrong, though?