Can someone point to some current up to date resources on this topic? Have searched like anything but most tutos like Iczelion\'s are a decade old and no longer current.
I agree with the other answers here; the content of these tutorials is still valid. However, they do not cover 64-bit assembly. If that's what you're after, I would suggest to familiarise yourself with Win32 (Iczelion's tutorials) first and then later try the same things in Win64.
The only major difference is the new calling convention on Win64 (and that you have more/larger registers, obviously).