I need a new dining table + 6 chairs
something that will last
The lounge suite from Harvey Norman did not.
The problem with modern furniture is that most of it is just not built to last. This goes even for the expensive stuff. If you want a really decent dining suite, your best bet is looking for second hand deals (online or furniture dealers) that sell the solid hardwood stuff you just can't get anymore.
If you are set on buying new, I'm afraid I'm not much use.