I would still wait. The first patch is out & seems to have addressed some of the smaller issues that were identified early, but none of the important ones: mainline quests, GPU temperature etc (doesn't matter what else your rig can handle, MMX will fry it - and it has nothing to do with the quality or otherwise of the graphics).

Gorge yourself on Heroes VI then saunter in after a couple of patches & enjoy what we should have got from the start.