Arm for Thorens TD-145 /160 ?

Check out this forum posted earlier today:
Cartridge Tonearm compatability

This thread from 2008 is still very relevant:
What tonearm is recommended for the denon 103r

I have a Thorens TD 150 with a Rega RB250 and an Ortofon Om-20. It tracks very well and is quite detailed in presentation, at least compared to the original arm.

Thanks everyone.
Some good answers that stayed on point/ topic! I posted the same question on Audiokarma and simply got arguments as to why I shouldn't change the TD-16, cause it is such a great arm (I think it is a decent arm, by the way- I just want a better arm for my greatly upgraded TD-145- I believe it deserves it!). I was also told there is no better arm for which I can use the DENON 103 due to it's low mass.
I appreciate the actually USEFUL answers and I will get down to some studying!
ThaNKS!
Gary

-should have said obviously low COMPLIANCE- High mass...

Gary, you might have seen this, but there's a relevant thread at Vinyl Engine:
Tonearm Recommendation For Td-145 (Sme 3009 ~ Rb-250?)