Just a little update. Almost at level 50 now, at about 49.3 and I've reached the stage in the main story where I'm doing the dungeons. I did also pick up the Aeoilian Scimitar HQ for 155k (better than the usual 200k!), so I will be collecting tomes very shortly.

2. Hit up AH and buy HQ Amber accessories for all slots. If they aren't there or seem pricey shout around for a goldsmith to make you some.
What do you mean? I've checked out the amber accessories, and it looks the best tank ones are around 300k each - i'm pretty good on the markets but that's mental! Is it worth holding out for accessories through drops/tomes? Or do I need to bite the bullet and invest?