Hi Biddlesby,
i hope this doesn't offend anyone, but most of the footwear advise you have been given so far isn't great.
The best boots you'll ever have aer the ones that actually fit!
I'd Ignore any advise towards a particular brand - what fits me ain't gonna fit you and brands can vary enormously in terms of fit (Scarpa currently make one of the widest and one of the narrowest boots on the market).
I'd also ignore anything made by Brasher or Berghaus (great rucksacs, bad boots). I saw someone take apart a brand new pair of Brasher Hillmasters by hand - they were literally ripped to peices!
The best way to get good boots is to visit a shop that uses the 'Phil Oren Fitsystem' there are plenty of them around. They are mainly indepenent Shops but I think I met a few guys from the outdoors chain stores on one of the fitsystem courses.
http://www.fitsystembyphiloren.com/
The Fitsystem ensures you are buying a boot that fits the shape of your foot, and you should get a guarantee that if the boots are not comfortable they will be exchanged/refunded (even after you've worn them on the hill) - the shop I used to work at had this policy.
A 'Fitsystem' shop will also modify a boot to account for bunions, bursars, hammer toes etc. this should be done free of charge.
Also, get a set of superfeet footbeds fitted to your boots. When i was selling boots, if the customer took my advise towards boots, socks and footbed i would give then a
guarantee of no blisters. There is no reason whatsoever for getting blisters.
Finally, don't get bogged down in argument about goretex/non-goretex or leather/fabric - if you don't like wet feet, your on the wrong site - and contrary to popular belief, fabric boots are generraly LESS breathable than Leather.
Hope this helps.
Matt